Eta Hydrae (η Hya) is the Bayer designation for a star in the equatorial constellation of Hydra. With an apparent visual magnitude of 4.3, it is visible to the naked eye. However, it is the faintest of the five stars that form the "head" of the hydra. Based upon an annual parallax shift of 5.56 mas, it is located roughly 590 light years from the Sun.This is a B-type main sequence star with a stellar classification of B3V. It has been classified as a candidate Beta Cephei variable with a period of 2.2 days, although this designation was rejected by Stankov and Handler (2005). The spectrum shows a slight underabundance of carbon, compared to the Sun. The star is around 32 million years old and is spinning with a projected rotational velocity of 101 km/s. It has an estimated seven times the mass of the Sun and nearly four times the Sun's radius. Eta Hydrae radiates 2,680 times the solar luminosity from its outer atmosphere at an effective temperature of 18,630 K.

Etabendiwewa

Eta Apodis

Country

Eta-conversion

Eta Cassiopeiae

Eta Pavonis

Eta Argus

η Ursae Minoris

−0.04

Eta Cephei (η Cep, η Cephei) is a star in the northern circumpolar constellation of Cepheus. It shares the name Al Kidr with θ Cep, although the meaning of this name is unknown. This star, along with α Cep (Alderamin) and β Cep (Alfirk), were identified as Al Kawākib al Firḳ (الكوكب الفرق), meaning "the Stars of The Flock" by Ulug Beg. With an apparent visual magnitude of 3.4, this is a third magnitude star that, according to the Bortle Dark-Sky Scale, is readily visible to the naked eye.

Eta Tucanae (η Tuc, η Tucanae) is a star in the constellation Tucana.Eta Tucanae is a white A-type main sequence dwarf with an apparent magnitude of +5.00. It is approximately 159 light years from Earth. This is a Vega-like star that has an infrared excess. It is about 10–40 million years old and is a member of the Tucana association.

Eta Moiseyevna Tyrmand (Russian: Эта Моисеевна Тырманд; February 23, 1917 – April 29, 2008) was a Belarusian composer.

Eta Muscae (η Mus) is a star in the constellation Musca. A multiple star system, the two main components form an eclipsing binary that has a spectral type of B8V and an apparent magnitude of 4.77 that dips by 0.05 magnitude every 2.39 days. Further away are stars of magnitude 7.3 and 10—termed Eta Muscae B and C. It is unclear if these stars are gravitationally bound to the main pair.

η Boötis

η Canis Minoris A/B

Eta Mensae (η Mensae, η Men) is an orange (4/10 of the way towards red) giant star of visual apparent magnitude 5.474 in the constellation Mensa.

Eta Aurigae

−3.70

"Et uus saaks alguse"

Et vous, tu m'aimes ? is the debut album of French indie folk duo Brigitte.

The eta (η) and eta prime meson (η′) are mesons made of a mixture of up, down and strange quarks and their antiquarks. The charmed eta meson (ηc) and bottom eta meson (ηb) are forms of quarkonium; they have the same spin and parity as the light eta but are made of charm quarks and bottom quarks respectively. The top quark is too heavy to form a similar meson, due to its very fast decay.

Two

Eta Volantis (η Vol, η Volantis) is a single star in the southern constellation of Volans. It has an apparent visual magnitude of 5.28, which is bright enough to be seen with the naked eye. Based upon parallax measurements, it is approximately 381 light years from Earth.This is a white A-type star with a blended spectrum that shows aspects of a main sequence star and a subgiant. It has two 12th magnitude optical companions at angular separations of 30.8 and 42.4 arcseconds.

Eta Lyrae (η Lyr, η Lyrae) is a star in the constellation Lyra. It has the traditional name Aladfar, from the Arabic الأظفر al-’uz̧fur "the talons (of the swooping eagle)", a name it shares with Mu Lyrae (though the latter is typically spelled Alathfar in English).Eta Lyrae belongs to spectral class B2.5IV and has apparent magnitude of +4.40. It is approximately 1390 light years from Earth.

Eta Microscopii is a star in the constellation Microscopium. Its apparent magnitude is 5.53. Located around 712 light-years distant, it shines with a luminosity approximately 457 times that of the Sun and has a surface temperature of 4400 K.

The Eta is a German-Italian Open Class two-seater flapped self-launching glider manufactured by ETA Aircraft. On introduction it was the highest performing glider.

Eta Carinae Nebula

EtaProof

η Vir Aa

Dr Steve Harris

HQR 2 inboard, HQR 1 outboard

Eta-Earth

A3IVs

Eta Antliae (η Ant, η Antliae) is the Bayer designation for a double star in the southern constellation of Antlia. The brighter component has an apparent visual magnitude of 5.222, making it visible to the naked eye. Parallax measurements of the system yield a distance estimate of 108.6 light-years (33.3 parsecs) from Earth.The main component has a stellar classification of F1 V, which indicates that it is an F-type main sequence star. This star has 55% more mass than the Sun. It shines with 6.6 times the Sun's luminosity at an effective temperature of 7,132 K. This heat gives it the yellow-white glow of an F-type star. It has a faint companion located 31 arcseconds away with an apparent magnitude of +11.3. Most likely this pair form a binary star system.

None

Eta Draconis (η Dra, η Draconis) is a star in the northern circumpolar constellation of Draco. Despite having an apparent visual magnitude of only +2.73, it is the second brightest star in this generally faint constellation. Based upon parallax measurements collected during the Hipparcos mission, this star is located at a distance of about 92.1 light-years (28.2 parsecs) from Earth.Eta Draconis is a large star with 2.55 times the mass of the Sun.

Eta Navis

Etablissement Archambault

/ or

A0IV

Eta reduction

Etaballia dubia

Et vous, tu m'aimes ?

Uus algus

Light blue, Dark blue and White

G7IIIa

Component 2

Eta Carinæ

Eta Hydrae (η Hya) is the Bayer designation for a star in the equatorial constellation of Hydra. With an apparent visual magnitude of 4.3, it is visible to the naked eye. However, it is the faintest of the five stars that form the "head" of the hydra. Based upon an annual parallax shift of 5.56 mas, it is located roughly 590 light years from the Sun.This is a B-type main sequence star with a stellar classification of B3V.

Nickname

−0.087

Eta conversion

Eta Piscis Austrini (Eta PsA, η Piscis Austrini, η PsA) is multiple star system in constellation of Piscis Austrinus, with an apparent magnitude of +5.43. The primary component is a blue B-type subgiant. It is approximately 1012 light years from Earth.Eta Piscis Austrini is moving through the Galaxy at a speed of 11.3 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,600 and 30,800 light years from the center of the Galaxy.

Eta Boeriu (born Margarita Caranica; February 23, 1923 in Turda – November 13, 1984 in Cluj-Napoca) was a Romanian poet, literary critic and translator. Involved in the Sibiu Literary Circle (which disbanded in 1945), she was especially known for her work as a translator of Italian-language Renaissance literature.

F2V

Eta Ursae Minoris (η UMi, η Ursae Minoris) is a star in the constellation Ursa Minor. It has the traditional names Anwar al Farkadain and Alasco.

Eta Virginis (η Virginis, abbreviated Eta Vir, η Vir), also named Zaniah, is a multiple star system in the zodiac constellation of Virgo. From parallax measurements, it was found to be roughly 265 light-years (81 parsecs) from the Sun. It has an apparent visual magnitude of 3.89, which is bright enough for the system to be seen with the naked eye in dark skies.

Eta Canis Maioris

Eta Coronae Borealis A

Eta (Greek)

Eta Sculptoris (η Scl, η Sculptoris) is a star in the constellation Sculptor. It is a red M-type red giant approximately 450 light years from Earth. It is classified as a semiregular variable and its apparent magnitude fluctuates between +4.80 and +4.90. It pulsates with multiple periods of 22.7, 23.5, 24.6, 47.3, 128.7 and 158.7 days.

Eta

Eta Sagittae (Eta Sge, η Sagittae, η Sge) is an orange K-type giant with an apparent magnitude of +5.09. It is approximately 162 light years from Earth.Eta Sagittae is moving through the Galaxy at a speed of 45.3 km/s relative to the Sun. Its projected Galactic orbit carries it between 19,100 and 25,500 light years from the center of the Galaxy. It will come closest to the Sun 953,000 years from now when it will brighten to magnitude 3.30 from a distance of 70 light years.

British

Eta-1 Doradus

Eta (uppercase Η, lowercase η; Ancient Greek: ἦτα Greek pronunciation: [êːtaː] or Modern Greek: ήτα Greek pronunciation: [ˈita]) is the seventh letter of the Greek alphabet. Originally denoting a consonant /h/, its sound value in the classical Attic dialect of Ancient Greek was a long vowel [ɛː], raised to [i] in hellenistic Greek, a process known as iotacism.In the system of Greek numerals it has a value of 8. It was derived from the Phoenician letter heth .

Location in Antarctica

Eta2 Hydri b (η2 Hyi b, η2 Hydri b), commonly known as HD 11977 b, is an extrasolar planet that is approximately 217 light-years away in the constellation of Hydrus. The presence of the planet around an intermediately massive giant star provides indirect evidence for the existence of planetary systems around A-type stars.

South Africa

Eta Lupi is a star in the constellation Lupus. Its apparent magnitude is 3.41. Located around 136 parsecs (440 ly) distant, it is a blue subgiant of spectral type B2.5IV, a star that has used up its core hydrogen and has begun to expand off the main-sequence.

Maureen , Hazel

B3 V

Eta Piscium (Eta Psc, η Piscium, η Psc), also named Alpherg, is the brightest star in the constellation Pisces. Eta Piscium is located at a distance of about 294 light years from Earth, and shines at magnitude +3.62. It is of Spectral type G7 III.The total luminosity of this star is 316 times that of the Sun, while its surface temperature is 4930 kelvin.

Eta Beta

η Sculptoris

Eta Scuti

Eta Island is an island, 2.8 kilometres (1.5 nmi) long, which lies immediately north of Omega Island in the Melchior Islands, Palmer Archipelago. This island, the largest feature in the northeast part of the Melchior Islands, is part of what was called "Île Melchior" by the French Antarctic Expedition, 1903–05, under Jean-Baptiste Charcot, but the name Melchior now applies to the whole island group. Eta Island was roughly surveyed by Discovery Investigations personnel in 1927. The name, derived from eta, the seventh letter of the Greek alphabet, appears to have been first used on a 1946 Argentine government chart following surveys of the Melchior Islands by Argentine expeditions in 1942 and 1943.

Eta Crv

Eta Sagittarii (Eta Sgr, η Sagittarii, η Sgr) is a binary star system in the southern zodiac constellation of Sagittarius. Based upon parallax measurements, it is located at a distance of 146 light-years (45 parsecs) from Earth. It was formerly known as "Beta Telescopii" (β Tel). In India, where part of the constellation of Sagittarius represents an Elephant, this star forms the creature's tail.The primary component, η Sagittarii A, is a red giant star with a stellar classification of M2 III.

Eta College is an international, private, single purpose college founded in 1983. It has nine campuses, and an online learning facility. The national office is located in Cape Town. Its purpose is to provide education for fitness sport and recreation needs. The language of instruction is English.

Eta Cassiopeiae in fiction

η Vir A
η Vir B

Eta Cephei

Eta (aircraft)

Etaanaru Seera Muun

Eta Sigma Phi

Eta Carinae A

Noelia Rivera

Eta Lep

Etaballia guianensis

Eta Tucanae

G8/K1 II or K0 III

Eta (uppercase Η, lowercase η; Ancient Greek: ἦτα Greek pronunciation: [êːtaː] or Modern Greek: ήτα Greek pronunciation: [ˈita]) is the seventh letter of the Greek alphabet. Originally denoting a consonant /h/, its sound value in the classical Attic dialect of Ancient Greek was a long vowel [ɛː], raised to [i] in hellenistic Greek, a process known as iotacism.In the system of Greek numerals it has a value of 8. It was derived from the Phoenician letter heth . Letters that arose from eta include the Latin H and the Cyrillic letter И.

Eta Canis Majoris (η Canis Majoris, abbreviated Eta CMa, η CMa), also named Aludra, is a star in the constellation of Canis Major. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.

Eta Antliae (η Ant, η Antliae) is the Bayer designation for a double star in the southern constellation of Antlia. The brighter component has an apparent visual magnitude of 5.222, making it visible to the naked eye. Parallax measurements of the system yield a distance estimate of 108.6 light-years (33.3 parsecs) from Earth.The main component has a stellar classification of F1 V, which indicates that it is an F-type main sequence star. This star has 55% more mass than the Sun.

France

Eta-charge

ΗΓΔ

Eta Volantis

Eta-quotient

η Volantis

May 6

Eta Lyrae

Eta Phi Zeta (sorority)

G8.5III

F1 V

Eta Aquarids

Eta Sagittae

Eta Funayama Burial Mound Sword (江田船山古墳鉄剣, eta funayama kofun tekken) in Japan is a 5th-century ancient iron sword excavated from the Eta Funayama kofun in Kumamoto Prefecture, Japan in 1873. The inscription on the blade indicates that the sword was made during the era of Emperor Yūryaku in the 5th century. The burial objects from the Eta Funayama site including this sword have been designated as National Treasure of Japan in the category archaeological materials.

Eta car

Eta Sagittarii

Eta Canis Minoris (η CMi, η Canis Minoris) is a binary star in the constellation Canis Minor. It is approximately 351 light years from Earth.The primary component, η Canis Minoris A, is a yellow-white F-type giant with an apparent magnitude of +5.24., Its companion, η Canis Minoris B, is an eleventh magnitude star located 4 arcseconds from the primary, though is actually around 440 AU from the main star and takes around 5000 years to orbit it.

Eta Island

la Eta

Eta Apodis (η Aps, η Apodis) is a star in the southern circumpolar constellation Apus. Based upon parallax measurements from the Hipparcos mission, it is approximately 138 light-years (42 parsecs) from Earth. With an apparent visual magnitude of +4.9, it can be viewed with the naked eye from the southern hemisphere.This star has about 1.77 times the mass of the Sun and 2.13 times the Sun's radius. It is radiating 15.5 times the luminosity of the Sun from its outer atmosphere at an effective temperature of 7,860 K. Eta Apodis is a young star with an age of about 250 million years.The stellar classification of Eta Apodis shows this to be an Am star, which means the spectrum shows chemically peculiarities. In particular, it is an A2-type star showing an excess of the elements chromium and europium. The spectrum displays magnetically-induced features indicating an estimated surface field strength of roughly 360 G. Based upon observations with the Spitzer Space Telescope, this system is emitting an excess of 24 μm infrared radiation. This may be caused by a debris disk of dust orbiting at a distance of more than 31 astronomical units from the star.

Eta Piscium (Eta Psc, η Piscium, η Psc), also named Alpherg, is the brightest star in the constellation Pisces. Eta Piscium is located at a distance of about 294 light years from Earth, and shines at magnitude +3.62. It is of Spectral type G7 III.The total luminosity of this star is 316 times that of the Sun, while its surface temperature is 4930 kelvin. The star has a radius of 26 ± 2 solar radii, while its mass is 3.5 to 4 solar masses.Eta Piscium has a faint companion star with a separation of about 1".

Linda Halliday

Eta meson

Ephraim Smith

Eta Phi Zeta

Eta Funayama Sword

HΦZ

Eta aircraft eta

K2III

Eta Cancri (η Cnc, η Cancri) is a class K3III (orange giant) star in the constellation Cancer. Its apparent magnitude is 5.34 and it is approximately 298 light years away based on parallax.

−4.14

Eta Phi Zeta (ΗΦΖ) is a Puerto Rican Sorority and non profit organization commonly known as ¨Las Etas¨ established on March 12, 1969 in the town of Arecibo, Puerto Rico This sorority is one of the few that still active in the island and has more than 4,000 sorority sisters all around Puerto Rico and Florida. It has Alumni and University Chapters in Puerto Rico.

η Trianguli Australis

nickname

Eta Car

suspected

"Et uus saaks alguse" ("So there can be a new beginning") is a song recorded by Estonian singer Birgit Õigemeel. The song was written by Mihkel Mattisen and Silvia Soro and produced by Mihkel Mattisen and Timo Vendt. It is best known as Estonia's entry to the Eurovision Song Contest 2013 held in Malmö, Sweden. The song competed in the first semi-final on 14 May 2013, placing 10th with 54 points, thus, qualifying to the final.

Eta Aquilae

Eta Gruis

Eta Pyxidis

Eta Trianguli Australis (η TrA, η Trianguli Australis) is a star in the constellation Triangulum Australe. It is sometimes given a superscript: η¹ Trianguli Australis, though it is the only star that is commonly referred to by this Bayer designation.Eta Trianguli Australis is a blue-white B-type subgiant with an apparent magnitude of +5.89. It is approximately 661 light years (203 parsecs) from Earth. Lacaille named a close by star as Eta as well, which was inconsistently followed by Francis Baily, who used the name for the brighter or both stars in two different publications. Despite their faintness, Gould upheld their Bayer designation as they were closer than 25 degrees to the south celestial pole. The second Eta is now designated as HD 150550. It is a variable star of average magnitude 6.53 and spectral type A1III.

"You're not alone"

Eta Pavonis (η Pav) is a star in the constellation Pavo. Its apparent magnitude is 3.61. Located around 108 parsecs (350 ly) distant, it is a bright giant of spectral type K2II, between the classifications of giant and supergiant.

Eta Cephei (η Cep, η Cephei) is a star in the northern circumpolar constellation of Cepheus. It shares the name Al Kidr with θ Cep, although the meaning of this name is unknown. This star, along with α Cep (Alderamin) and β Cep (Alfirk), were identified as Al Kawākib al Firḳ (الكوكب الفرق), meaning "the Stars of The Flock" by Ulug Beg. With an apparent visual magnitude of 3.4, this is a third magnitude star that, according to the Bortle Dark-Sky Scale, is readily visible to the naked eye. Parallax measurements put it at a distance of 46.53 light-years (14.27 parsecs) from Earth.In Chinese, 天鈎 (Tiān Gōu), meaning Celestial Hook, refers to an asterism consisting of η Cephei, 4 Cephei, HD 194298, θ Cephei, α Cephei, ξ Cephei, 26 Cephei, ι Cephei and ο Cephei. Consequently, η Cephei itself is known as 天鈎四 (Tiān Gōu sì, English: the Fourth Star of Celestial Hook.).Eta Cephei is a subgiant star with a stellar classification of K0 IV, which indicates it is exhausting the supply of hydrogen at its core and is in the process of evolving into a giant star. With 1.6 times the Sun's mass, at an age of 2.5 billion years it has reached a radius four times larger than the Sun and a luminosity ten times greater. It is radiating this energy from its outer atmosphere at an effective temperature of 4,950 K, giving it the orange-hued glow of a K-type star. Eta Cephei has a high proper motion across the celestial sphere and a large peculiar velocity of 112 km s−1.

η Crucis

*Mihkel Mattisen
*Timo Vendt

Eta Canis Majoris

−1.82

A0 Vn

B8V

Amor Omnia Superat

A4V + F7/8V

*Maximum wing loading: 44.8 kg/m2

Mesons

η Piscis Austrini, η PsA, Eta PsA, 12 Piscis Austrini, CCDM J22008-2827AB, CPD−29 6659, GC 30785, HD 209014, HIP 108661, HR 8386, IDS 21551-2856 AB, PPM 273250, SAO 190822, WDS J22008-2827AB

Et tu, brute

Eta Microscopii

Eta carinae

Eta Piscium

Eta Draconis (η Dra, η Draconis) is a star in the northern circumpolar constellation of Draco. Despite having an apparent visual magnitude of only +2.73, it is the second brightest star in this generally faint constellation. Based upon parallax measurements collected during the Hipparcos mission, this star is located at a distance of about 92.1 light-years (28.2 parsecs) from Earth.Eta Draconis is a large star with 2.55 times the mass of the Sun. The spectrum matches a stellar classification of G8 III, with the luminosity class III indicating this is an evolved giant star that has exhausted the supply of hydrogen at its core. It reached this stage in only 550 million years because higher mass stars such as this consume the supply of hydrogen more rapidly than the Sun. The measured angular diameter of this star, after correction for limb darkening, is 3.72 ± 0.07 mas. At the estimated distance of Eta Draconis, this yields a physical size of about 11 times the radius of the Sun. From its extended envelope, it is radiating around 60 times the luminosity of the Sun at an effective temperature of 5,055 K, giving it the yellow glow of a G-type star.A nearby stellar companion is located at an angular separation of 5.1 arcseconds from Eta Draconis. This is an 8.8 magnitude K-type main sequence star with a stellar classification of K2 V. At the estimated distance of this star system, the two stars are separated by a physical distance of at least 140 AU and require at least a millennium to complete an orbit.

Eta Gruis (η Gru) is a star in the constellation Grus. Its apparent magnitude is 4.86.

Et tu brute

K4III

Eta Aquilae (η Aql, η Aquilae) is the Bayer designation for a multiple star in the equatorial constellation of Aquila, the eagle. It was once part of the former constellation Antinous. On average, this star has an apparent visual magnitude of 3.87, making it one of the brighter members of Aquila. Based upon parallax measurements made during the Hipparcos mission, this star is located at a distance of roughly 1,382 light-years (424 parsecs), although the parallax estimate has a 44% margin of error.

Etaballia

Eta Hydrae

Eta Capricorni (η Cap, η Capricorni) is a binary star in the constellation Capricornus. It is approximately 167 light years from Earth.The primary component, η Capricorni A, is a white A-type main sequence dwarf with an apparent magnitude of +4.82. Its companion, η Capricorni B, has an apparent magnitude of +6.5 and is located 0.34 arcseconds from the primary.Sometimes, this star is called by the name Armus.

Village

Eta Draconis

Eta Orionis

Gold

Eta Gamma Delta (ΗΓΔ) is a Puerto Rican sorority established in 1928.

The Eta Carinids are a meteor shower lasting from January 14 to 27 each year, peaking on January 21. C. S. Nilsson of the Adelaide Observatory discovered them in 1961 in Australia. Roughly two to three meteors occur per hour at its maximum. It gets its name from the radiant which is close to the nebulous star Eta Carinae.

−0.708

Eta Crucis

studio

Eta Delphini

η Peg A

G8III-IV

G2 II + F0 V

Eta Scuti (η Sct, η Scuti) is a star in the constellation Scutum.Eta Scuti is an orange K-type giant with an apparent magnitude of +4.83. It is approximately 202 light years from Earth. This star has 1.4 times the mass of the Sun, more than ten times the Sun's radius, and is about 2.8 billion years old.Eta Scuti was a latter designation of 9 Aquilae.

Eta Leonis (η Leo, η Leonis) is a fourth-magnitude star in the constellation Leo. It doesn't have a proper name. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.

Eta Cancri

K1+ IIIb

DHET, CHEC, REPPSA, SSISA, APPETD, CATHSSETA, ETDPSETA, College SA, , Blue Bulls Rugby Union, Stellenbosch Rugby Academy, WPCC, JR School Mauritius, Core Direction Dubai, Virgin Active.

Eta cygnus

Sororas Seremos Siempre

Eta college

Eta Serpentis

Vijay Kumar Patodi

Etablissement Francais d'Enseignement MONTAIGNE

Et vir is a Latin phrase meaning "and husband". It is used in legal literature to indicate a couple comprising an identified woman and her otherwise unidentified husband. For example, the U.S. Supreme Court case Troxel et vir v. Granville is an example of modern legal usage of the Latin phrase. Additionally, many property deeds would list the owners in the form "Jane Doe et vir" when appropriate.

Eta Ursae Majoris

Michael Atiyah

Et uxor

Eta Andromedae (Eta And, η Andromedae, η And) is a spectroscopic binary star in the constellation of Andromeda. It consists of two G-type subgiant or giant stars orbiting each other with a period of 115.7 days and has an overall apparent visual magnitude of approximately 4.403.

Las Etas

η Columbae

Eta Carinae nebula

Eta Leporis (Eta Lep, η Leporis, η Lep) is a F-type main sequence star in the constellation of Lepus. It has an apparent visual magnitude of approximately 3.719. Using the IRS instrument on the Spitzer Space Telescope, excess infrared emission has been observed from the star, which can be modelled by a dust disk extending from 1 to 16 astronomical units from the star.

Eta Ursae Majoris (η Ursae Majoris, abbreviated Eta UMa, η UMa), also named Alkaid, is a star in the constellation of Ursa Major. It is the most eastern (leftmost) star in the Big Dipper (Plough) asterism. However, unlike most stars of the Big Dipper, it is not a member of the Ursa Major moving group.

Eta Crucis (η Crucis) is a solitary star in the southern constellation of Crux. It can be seen with the naked eye, having an apparent visual magnitude of 4.14m. Based upon parallax measurements, η Crucis is located 64 light-years from the Sun. The system made its closest approach about 1.6 million years ago when it achieved perihelion at a distance of roughly 26 light years.This is an F-type main sequence star with a stellar classification of F2 V.

Eta Coronae Borealis B

A1V

−4.90

Open-class sailplane

B1 V + B3 V + B2 V

The Eta Aquariids are a meteor shower associated with Halley's Comet.The shower is visible from about April 21 to about May 20 each year with peak activity on or around May 6. Unlike most major annual meteor showers, there is no sharp peak for this shower, but rather a plateau of good rates that last approximately one week centered on May 7. The meteors we currently see as members of the Eta Aquariid shower separated from Halley’s Comet hundreds of years ago. The current orbit of Halley’s Comet does not pass close enough to the Earth to be a source of meteoric activity.Although this shower is not as spectacular as the Leonids, it is not an ordinary event. The Eta Aquariids get their name because their radiant appears to lie in the constellation Aquarius, near one of the constellation's brightest stars, Eta Aquarii. The shower peaks at about a rate of around a meteor per minute, although such rates are rarely seen from northern latitudes due to the low altitude of the radiant.The Eta Aquariids are best viewed in the pre-dawn hours away from the glow of city lights. For northern observers, the radiant of the shower is only above the horizon for the few hours before dawn, and early-rising observers are often rewarded with rates that climb as the radiant rises before sunrise. The shower is best viewed from the equator to 30 degrees south latitude.In 2005, the shower was favorably viewable because of a new moon on May 8. In 2011, the maximum of the shower was again favoured by a May 3 new moon, which meant that the period around maximum was visible in moon-free pre-dawn skies. In 2012 they were seen on May 6, 2012 along with a supermoon around dusk. On May 6, 2013 there was a 10% waning crescent moon in the pre-dawn sky.

G0 IV

η Tucanae

Eta Coronae Borealis (η Coronae Borealis, η CrB) is a stellar system that lies approximately 58 light-years away. The primary component is a mid-wide binary, while a brown dwarf component is located at a wide separation.

η Cas A

Eta Tyrmand

Eta Coronae Borealis

Eta Serpentis (η Ser, η Serpentis) is a star in the constellation Serpens. In particular, it lies in Serpens Cauda, the snake's tail. The star has an apparent visual magnitude of 3.260, making it visible to the naked eye. Parallax measurements give a distance estimate of 60.5 light-years (18.5 parsecs) from the Earth.This star is larger than the Sun, with twice the mass and almost six times the radius.

Eta invariant

Eta Normae (η Nor) is a star in the constellation Norma. Its apparent magnitude is 4.65. Located between 215 and 223 light-years distant, it is a yellow giant of spectral type G8III that has swollen and cooled off the main sequence. It shines with a luminosity approximately 66 times that of the Sun and has a surface temperature of 5100 K.

Eta Sculptoris

Eta Beta (band)

Sola 2625-02

Eta Cassiopeiae (η Cas, η Cassiopeiae) is a star system in the northern circumpolar constellation of Cassiopeia. Based upon parallax measurements, the distance to this system is 19.42 light-years (5.95 parsecs) from Earth.In Chinese astronomy, η Cassiopeiae is within the Legs mansion, and is part of the 王良 (Wáng Liáng) asterism, named for a famous charioteer during the Spring and Autumn period. The other components are β Cassiopeiae, κ Cassiopeiae, α Cassiopeiae and λ Cassiopeiae.
η Cas B

Et vous, tu m'aimes?

Eta Aquarii

Eta College

bottom

Eta Cohen

Et tu Brute

Eta2 Hydri b

Eta Sigma Phi (ΗΣΦ) is a College honor society which grew out of a local undergraduate classical club founded by a group of students in the Department of Greek at the University of Chicago in 1914. This organization later united with a similar organization at Northwestern University and became Phi Sigma. Phi Sigma was nationalized in 1924, and chapters were organized at leading colleges and universities.[1]On May 14, 1927, it became Eta Sigma Phi, the National Honorary Classical Fraternity, and was incorporated under the laws of the State of Illinois. Though nominally a fraternity, as an honor society it is open to both genders.

"Et uus saaks alguse" ("So there can be a new beginning") is a song recorded by Estonian singer Birgit Õigemeel. The song was written by Mihkel Mattisen and Silvia Soro and produced by Mihkel Mattisen and Timo Vendt. It is best known as Estonia's entry to the Eurovision Song Contest 2013 held in Malmö, Sweden. The song competed in the first semi-final on 14 May 2013, placing 10th with 54 points, thus, qualifying to the final. In the grand final on 18 May 2013, the song placed 20th, gaining 19 points from Finland, Latvia and Lithuania.Alongside Õigemeel, 3 backing vocalists Kaido Põldma, Lauri Pihlap and Raimondo Laikre appeared on stage, while Põldma and Pihlap did the same in 2001 when Estonia won the contest in Copenhagen.The song has been recorded in several other languages, such as English (New Way to Go), Spanish (Volver a empezar), Swedish (Allting börjar om), and Russian (Светлое начало/Svyetloye nachalo).

Eta Phoenicis (η Phe) is a class A0IV (white subgiant) star in the constellation Phoenix. Its apparent magnitude is 4.36 and it is approximately 246 light years away based on parallax.Eta Phoenicis has two reported companions; in addition to a distant secondary, B, at magnitude 11.5 and separation 20", the primary has a reported companion Ab with an estimated separation of 6.8 AU, a period slightly longer than 10 years, a magnitude of 8.5, and a spectral type around G5V.

Et uus saaks alguse

Eta Phoenicis

Eta Orionis (η Ori, η Orionis) is a star in the constellation Orion. Other names are Saiph (Arabic for "sword"), Algjebbah (Arabic for "scutum"), and Ensis (Latin for "sword", since the star is taken to represent Orion's sheathed weapon). Eta Orionis lies a little to the west of Orion's belt between Delta Orionis and Rigel, being closer to Delta Orionis than to Rigel.

−2.80

Eta+Cas

Private College

η Vir Ab

B7IVe

Et vir

Eta Eridani (η Eridani, abbreviated Eta Eri, η Eri), also named Azha, is a giant star in the constellation of Eridanus. It is 137 light years from the Sun.

Etaballia dubia is a species of flowering plant in the legume family, Fabaceae. It belongs to the subfamily Faboideae, and was recently assigned to the informal monophyletic Pterocarpus clade of the Dalbergieae. It is the only member of the genus Etaballia.

Eta Ursae Maioris

Etables

η Ori A

F6 Iab + B9.8 V + F1-5 V

Eta Telescopii (η Tel, η Telescopii), also known as HD 181296 or HR 7329, is a star in the southern constellation of Telescopium. This is a white-hued A-type main sequence star with an apparent visual magnitude of +5.03. It is approximately 155 light years from Earth and is a member of the Beta Pictoris Moving Group of stars that share a common motion through space. It is moving through the Galaxy at a speed of 23.7 km/s relative to the Sun.In 1998, imaging with the Hubble Space Telescope revealed a 12th magnitude object around 4" distant from Eta Telescopii, and calculated to be a brown dwarf of spectral type M7V or M8V with a surface temperature of around 2600 K. It is located around 192 AU distant from the primary star, and weighs between 20 and 50 Jupiter masses.This star has 2.9 times the mass of the Sun and is radiating around 22 times the Sun's luminosity from its outer atmosphere at an effective temperature of 9,506 K. The age of the star is only about 12 million years. It is emitting an excess of infrared radiation that suggests the presence of a circumstellar disk of dust at an orbital radius of 24 AU, and an unresolved asteroid belt at 4 AU from the host star. Subsequent imaging showed there were no objects of 20 Jupiter masses or greater between the disk and the brown dwarf, leading the researchers Neuhäuser and colleagues to postulate that the brown dwarf had an eccentric orbit - if 200 AU were its furthest distance from the primary, then it could come as close as 71 AU with an average distance of 136 AU.Eta Telescopii is in fact a triple star system; further away, separated by 7', is HD 181327, a yellow-white main sequence star of spectral type F6V and apparent magnitude 7.0, which has its own debris disk. This disk has a sharply-defined inner edge at 31 AU, indicating a likely planet between 19 and 31 AU from the star.

Eta Muscae

Eta Andromedae

Setiawan et al.

Eta Serpentis (η Ser, η Serpentis) is a star in the constellation Serpens. In particular, it lies in Serpens Cauda, the snake's tail. The star has an apparent visual magnitude of 3.260, making it visible to the naked eye. Parallax measurements give a distance estimate of 60.5 light-years (18.5 parsecs) from the Earth.This star is larger than the Sun, with twice the mass and almost six times the radius. The spectrum matches a stellar classification of K0 III-IV, with the luminosity class of III-IV corresponding to an evolved star that lies between the subgiant and giant stages. The expanded outer envelope star is radiating about 19 times the luminosity of the Sun at an effective temperature of 4,890 K. At this temperature, it has an orange hue typical of a K-type star. Eta Serpentis displays solar-like oscillations with a period of 0.09 days.Eta Serpentis was previously classified as a carbon star, which would have made it the brightest carbon star in the sky, although this classification was since found to be erroneous.

Eta-jima

Etabendiwewa is a village in Sri Lanka. It is located within Central Province.

Eta Delphini (η Del, η Delphini) is a star in the constellation Delphinus. It has an apparent magnitude of about 5.4, meaning that it is just barely visible to the naked eye. Based upon parallax measurements made by the Hipparcos spacecraft, this star is around 173 light years away from the Sun.Eta Delphini's spectral type is A3IVs, meaning it is an A-type subgiant with narrow absorption lines. SIMBAD lists this star as a variable star.

approximately

Eta Telescopii (η Tel, η Telescopii), also known as HD 181296 or HR 7329, is a star in the southern constellation of Telescopium. This is a white-hued A-type main sequence star with an apparent visual magnitude of +5.03. It is approximately 155 light years from Earth and is a member of the Beta Pictoris Moving Group of stars that share a common motion through space.

Etables-sur-Mer

η Scuti

Arecibo

K3III

B2.5IV

Violin tutor, author, violinist

Eta Gamma Delta

yes

Eta Capricorni

η Mensae

η Phoenicis

Flugtechnik Leichtbau, Braunschweig, led by Reiner Kickert

G1V / G3V / L8

Eta Island is an island, 2.8 kilometres (1.5 nmi) long, which lies immediately north of Omega Island in the Melchior Islands, Palmer Archipelago. This island, the largest feature in the northeast part of the Melchior Islands, is part of what was called "Île Melchior" by the French Antarctic Expedition, 1903–05, under Jean-Baptiste Charcot, but the name Melchior now applies to the whole island group. Eta Island was roughly surveyed by Discovery Investigations personnel in 1927.

The system

Eta Aquariids

Cape Town eta College Campus

Eta Mayseyewna Tïrmand

B9IV-Vn

Eta function (disambiguation)

Eta Crateris

In mathematics, the eta invariant of a self-adjoint elliptic differential operator on a compact manifold is formally the number of positive eigenvalues minus the number of negative eigenvalues. In practice both numbers are often infinite so are defined using zeta function regularization. It was introduced by Atiyah, Patodi, and Singer (1973, 1975) who used it to extend the Hirzebruch signature theorem to manifolds with boundary. The name comes from the fact that it is a generalization of the Dirichlet eta function.They also later used the eta invariant of a self-adjoint operator to define the eta invariant of a compact odd-dimensional smooth manifold.Michael Francis Atiyah, H. Donnelly, and I. M. Singer (1983) defined the signature defect of the boundary of a manifold as the eta invariant, and used this to show that Hirzebruch's signature defect of a cusp of a Hilbert modular surface can be expressed in terms of the value at s=0 or 1 of a Shimizu L-function.
Michael Francis

Exercise Teachers Academy

Benth.

In mathematics, the eta invariant of a self-adjoint elliptic differential operator on a compact manifold is formally the number of positive eigenvalues minus the number of negative eigenvalues. In practice both numbers are often infinite so are defined using zeta function regularization. It was introduced by Atiyah, Patodi, and Singer (1973, 1975) who used it to extend the Hirzebruch signature theorem to manifolds with boundary.

Eta Normae

Et tu brutus

Eta Piscis Austrini

Eta Sigma Phi (honor society)

Eta Apodis (η Aps, η Apodis) is a star in the southern circumpolar constellation Apus. Based upon parallax measurements from the Hipparcos mission, it is approximately 138 light-years (42 parsecs) from Earth. With an apparent visual magnitude of +4.9, it can be viewed with the naked eye from the southern hemisphere.This star has about 1.77 times the mass of the Sun and 2.13 times the Sun's radius.

Eta Carinids

Imperial

η Ori B

CPD−75 290, FK5 1138, HD 32440, HIP 22871, HR 1629, SAO 256145

Eta Virginis

Eta expansion

Eta Boötis in fiction

Eta Herculis (η Her, η Herculis) is a fourth-magnitude star in the constellation Hercules.

Eta Coronae Borealis AB

Etaballia guianensis (Benth.)

Black

Eta set

Platinum

Eta Boötis

K0 IV

K2II

Eta Island (Palmer Archipelago)

Eta Cassiopeiae B

F0III

G8 III

A2MA7-F2 or A2 CrEu

Et uxor is a Latin phrase meaning "and wife", commonly abbreviated "et ux." The term is a legal phrase that is used in lieu of naming the female spouse of a male party to litigation, for example Loving et ux. v. Virginia. The term remains in contemporary use in American legal documents, especially as related to property and marriage. Many older property deeds list the owners in the form "John Smith et ux." In the present day, most jurisdictions would indicate both the husband and wife by name.

F2 V

Eta (letter)

Eta Carina Nebula

Eta-1 Trianguli Australis

Eta Telescopii

Eta Leporis

Singer

Eta Pegasi

E. dubia

Eta Hydri

G8III

Eta Sagittarii (Eta Sgr, η Sagittarii, η Sgr) is a binary star system in the southern zodiac constellation of Sagittarius. Based upon parallax measurements, it is located at a distance of 146 light-years (45 parsecs) from Earth. It was formerly known as "Beta Telescopii" (β Tel). In India, where part of the constellation of Sagittarius represents an Elephant, this star forms the creature's tail.The primary component, η Sagittarii A, is a red giant star with a stellar classification of M2 III. It is an evolved star that is currently at a stage called the asymptotic giant branch, having exhausted both the hydrogen and the helium at its core. This star is classified as an oxygen-rich irregular variable, as it undergoes small magnitude fluctuations between +3.08 and 3.12. The measured angular diameter of this star is 11.9 ± 2.1 mas. At the estimated distance of Eta Draconis, this yields a physical size of about 57 times the radius of the Sun.The companion, η Sagittarii B, was first noted by American astronomer S. W. Burnham in 1879. The two stars share a common proper motion and hence are probably gravitationally bound to each other. The secondary is likely an F-type main sequence star with an apparent magnitude of +7.77. It located at an angular separation of 3.6 arcseconds from the primary, along a position angle of 108°. This star is at a projected distance of 165 Astronomical Units from the red giant primary and the pair take a minimum of 1,270 years to complete an orbit.Within the context of the Milky Way galaxy, this system is a member of the faint old disk group. Because of proper motion, this star will move into constellation Corona Australis around 6300 CE. Eta Sagittarii has two optical companions that are not physically associated with the system. The first is a 10th magnitude star at an angular separation of 93 arcseconds with a position angle of 303°. There is a fainter, 13th magnitude star at an angular separation of 33 arcseconds along a position angle of 276°.

Eta Reticuli

Eta Tauri

K0 III-IV

Eta Linnemann

Consortium
Eta (glider)

Eta-1

Green

eta+Men

Eta Ursae Majoris (η Ursae Majoris, abbreviated Eta UMa, η UMa), also named Alkaid, is a star in the constellation of Ursa Major. It is the most eastern (leftmost) star in the Big Dipper (Plough) asterism. However, unlike most stars of the Big Dipper, it is not a member of the Ursa Major moving group. With an apparent visual magnitude of +1.84, it is the third-brightest star in the constellation and one of the brightest stars in the night sky.Eta Ursae Majoris is a 10-million-year-old B-type main sequence star with a stellar classification of B3 V. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. It has six times the mass; 3.4 times the radius, and is radiating around 1,350 times as much luminosity as the Sun, the latter from its outer atmosphere at an effective temperature of about 16,823 K, giving it the blue-white hue of a B-type star. This star is an X-ray emitter with a luminosity of 9.3 × 1028 erg s−1.

Eta Pegasi (η Pegasi, abbreviated Eta Peg, η Peg), also named Matar, is a binary star in the constellation of Pegasus. The apparent visual magnitude of this star is +2.95, making it the fifth-brightest member of Pegasus. Based upon parallax measurements, the distance to this star is about 167 light-years (51 parsecs) from the Sun.

Eta Aquilae (η Aql, η Aquilae) is the Bayer designation for a multiple star in the equatorial constellation of Aquila, the eagle. It was once part of the former constellation Antinous. On average, this star has an apparent visual magnitude of 3.87, making it one of the brighter members of Aquila.

Eta-reduction

Eta-2 Hydri

Donnelly

Eta Aircraft eta

Et tu quoque

A0/1IV/V

twin cylinder inline two stroke piston engine

η Sgr A

Eta Sigma Phi (ΗΣΦ) is a College honor society which grew out of a local undergraduate classical club founded by a group of students in the Department of Greek at the University of Chicago in 1914. This organization later united with a similar organization at Northwestern University and became Phi Sigma.

Eta and eta prime mesons

η Her

Eta Lupi

η And

Eta Herculis

Etab meson

Eta Island is an island of Bermuda.

−0.026

Eta Pyxidis (Eta Pyx, η Pyxidis, η Pyx) is multiple star system in constellation of Pyxis, with an apparent magnitude of +5.24. The primary component is a white A-type main sequence star. It is approximately 242 light years from Earth.Eta Pyxidis is moving through the Galaxy at a speed of 32.4 km/s relative to the Sun.

Eta Canis Minoris

Eta Antliae

Puerto Rico

Eta Bootis

Eta Boeriu

Eta Linnemann (October 19, 1926 Osnabrück - 9 May 2009 Leer (Ostfriesland)) was a German Protestant theologian. In her last years, she broke completely with the theology of her teacher Rudolf Bultmann.

Eta Leonis

Eta invariants, signature defects of cusps, and values of L-functions
Atiyah

Sri Lanka Standard Time

Eta Columbae is a solitary star near the southern boundary of the constellation Columba. It is visible to the naked eye, having an apparent visual magnitude of 3.96. Based upon an annual parallax shift of 6.91 mas, it lies at a distance of roughly 472 light years from the Sun.This is an orange-hued K-type giant star with a stellar classification of K0 III, or possibly a bright giant with a crossover class of G8/K1 II.

Eta Doradus

Administered under the Antarctic Treaty System

Eta Beta 27

η Leporis

Eta Gem

Eta Aquarii (η Aqr, η Aquarii) is the Bayer designation for a star in the equatorial constellation of Aquarius. It is visible to the naked eye with an apparent visual magnitude of 4.04. The distance to this star, as determined by parallax measurements, is about 168 light-years (52 parsecs).

Eta Cohen (1916 - 20 November 2012) was a professional English author, teacher and violinist.Cohen was born in Sunderland, to Jewish immigrants from Lithuania. She left school at age 16 and began to teach music in local private schools in Sunderland and Newcastle. At the age of 17 she was asked to teach for the local education authority, leading her to look for a published violin method on which to base her teaching.

A2 V

−20.32

San Juan

Eta And

Eta1 Trianguli Australis

B5 Ia

Eta Cohen (1916 - 20 November 2012) was a professional English author, teacher and violinist.Cohen was born in Sunderland, to Jewish immigrants from Lithuania. She left school at age 16 and began to teach music in local private schools in Sunderland and Newcastle. At the age of 17 she was asked to teach for the local education authority, leading her to look for a published violin method on which to base her teaching. In 1933 after failing to find a satisfactory book she decided to begin writing out the lessons she taught to her students. These lessons would eventually become the foundation of her own violin method which was published as a series of books .In 1945, she married Ephraim Smith, a businessman in the cloth industry, whose parents were also Jewish immigrants from Lithuania. Cohen had two daughters, Maureen and Hazel, born in Leeds. She studied the violin with Max Rostal and Carl Flesch . She died at the age of 96, survived by her daughters, two granddaughters and a great-granddaughter.

Eta-invariant

La Silla

Eta Cassiopeiae (η Cas, η Cassiopeiae) is a star system in the northern circumpolar constellation of Cassiopeia. Based upon parallax measurements, the distance to this system is 19.42 light-years (5.95 parsecs) from Earth.In Chinese astronomy, η Cassiopeiae is within the Legs mansion, and is part of the 王良 (Wáng Liáng) asterism, named for a famous charioteer during the Spring and Autumn period. The other components are β Cassiopeiae, κ Cassiopeiae, α Cassiopeiae and λ Cassiopeiae. Consequently, η Cassiopeiae itself is known as 王良三 (Wáng Liáng sān, English: the Third Star of Wang Liang.)

A0V
Eta Pyxidis (Eta Pyx, η Pyxidis, η Pyx) is multiple star system in constellation of Pyxis, with an apparent magnitude of +5.24. The primary component is a white A-type main sequence star. It is approximately 242 light years from Earth.Eta Pyxidis is moving through the Galaxy at a speed of 32.4 km/s relative to the Sun. Its projected Galactic orbit carries it between 18,500 and 24,200 light years from the center of the Galaxy.Eta Pyxidis came closest to the Sun 2.1 million years ago when it had brightened to magnitude 2.54 from a distance of 67 light years.

Violin tutor,author,violinist

Self

album

I. M.

eta College

Eta-b particle

η Eridani

η Telescopii

Uninhabited

η Aquilae

Eta Eridani

Et ux

Eta Aquarii (η Aqr, η Aquarii) is the Bayer designation for a star in the equatorial constellation of Aquarius. It is visible to the naked eye with an apparent visual magnitude of 4.04. The distance to this star, as determined by parallax measurements, is about 168 light-years (52 parsecs). Eta Aquarii is near the radiant of a meteor shower named after it.Eta Aquarii has a stellar classification of B9IV-Vn, which may indicate that it is beginning to evolve away from the main sequence into a subgiant as the supply of hydrogen at its core becomes exhausted. It is spinning rapidly with a high projected rotational velocity of 291 km/s. This is causing an equatorial bulge, giving the star an oblate figure with a 24% larger radius at the equator than at the poles. The Doppler effect from the rapid rotation is causing the absorption lines in the star's spectrum to blur, as indicated by the 'n' suffix in the star's classification.

carbon reinforced plastic propeller, pulley driven on folding column

The Eta Aquariids are a meteor shower associated with Halley's Comet.The shower is visible from about April 21 to about May 20 each year with peak activity on or around May 6. Unlike most major annual meteor showers, there is no sharp peak for this shower, but rather a plateau of good rates that last approximately one week centered on May 7. The meteors we currently see as members of the Eta Aquariid shower separated from Halley’s Comet hundreds of years ago.

Eta prime meson

Patodi

Simons p.99

Eta1 Dor

K2IIICNv...

−-0.206

G0 V + K7 V

Eta Carini

η Sagittae, η Sge, Eta Sge, 16 Sagittae, BD+19 4277, FK5 3609, GC 27868, HD 190608, HIP 98920, HR 7679, PPM 137588, SAO 105659.

December 2012

B8/B9V+...

*Mihkel Mattisen
*Silvia Soro

Enaltecer el rol de la mujer en nuestra sociedad

Eta-1 Dor

Eta Biter

K1-III

Germany

Eta Cassiopei

Eta function

Yellow

Eta Jima

Rudd

Eta charge

Eta Island, Bermuda

η Pavonis

Eta Columbae is a solitary star near the southern boundary of the constellation Columba. It is visible to the naked eye, having an apparent visual magnitude of 3.96. Based upon an annual parallax shift of 6.91 mas, it lies at a distance of roughly 472 light years from the Sun.This is an orange-hued K-type giant star with a stellar classification of K0 III, or possibly a bright giant with a crossover class of G8/K1 II. The measured angular diameter of this star, after correction for limb darkening, is 7000248000000000000♠2.48±0.03 mas. At the estimated distance of this star, this yields a physical size of about 38.6 times the radius of the Sun. It has an estimated 3.33 times the mass of the Sun and radiates 708 times the solar luminosity from its outer atmosphere at an effective temperature of 4,620 K.

Eta Ursae Minoris

Eta (disambiguation)

Eta Orionis in fiction

Eta Trianguli Australis (η TrA, η Trianguli Australis) is a star in the constellation Triangulum Australe. It is sometimes given a superscript: η¹ Trianguli Australis, though it is the only star that is commonly referred to by this Bayer designation.Eta Trianguli Australis is a blue-white B-type subgiant with an apparent magnitude of +5.89. It is approximately 661 light years (203 parsecs) from Earth.

Candidate β Cep

M2 III + F7 V

Eta Mensae

F5 V

η Ant A

Eta Orionis (η Ori, η Orionis) is a star in the constellation Orion. Other names are Saiph (Arabic for "sword"), Algjebbah (Arabic for "scutum"), and Ensis (Latin for "sword", since the star is taken to represent Orion's sheathed weapon). Eta Orionis lies a little to the west of Orion's belt between Delta Orionis and Rigel, being closer to Delta Orionis than to Rigel. It lies at a distance of around 1,000 light years from Earth and is part of the Orion Arm.This is a quadruple star system, of which three members can be resolved with a telescope. The primary component is an eclipsing binary star in a triple-star grouping. These stars have orbital periods of 8 days and 9.2 years. It includes a variable star with a pulsation period of around 8 hours. Three of the components are B-type main sequence stars with stellar classifications of B1 V, B3 V and B2 V.

Eta carina

Eta (given name)

Eta Crucis (η Crucis) is a solitary star in the southern constellation of Crux. It can be seen with the naked eye, having an apparent visual magnitude of 4.14m. Based upon parallax measurements, η Crucis is located 64 light-years from the Sun. The system made its closest approach about 1.6 million years ago when it achieved perihelion at a distance of roughly 26 light years.This is an F-type main sequence star with a stellar classification of F2 V. It has 130% of the Sun's radius and shines with 7 times the luminosity of the Sun from an outer atmosphere with an effective temperature of 6,964 K. Observations of the system using the Spitzer Space Telescope show a statistically significant infrared excess of emission at a wavelength of 70μm. This suggests the presence of a circumstellar disk. The temperature of this material is below 70 K.Eta Crucis has a pair of visual companions. Component B is a magnitude 11.80 star located at an angular separation of 48.30″ along a position angle of 300°, as of 2010. Component C has a magnitude of 12.16 and lies at an angular separation of 35.50″ along a position angle of 194°, as of 2000.

Etable

Isadore Singer

η Aurigae

Eta Acuarids

A0 Ib

Eta Columbae

Published

G7.5 IIIb

met

Eta Ursae Minoris (η UMi, η Ursae Minoris) is a star in the constellation Ursa Minor. It has the traditional names Anwar al Farkadain and Alasco. The first is from the Arabic أنور الفرقدين ’anwar al-farqadayn "the brighter of the two calves", as opposed to Ahfa al Farkadain (ζ UMi) "the dimmer of the two calves"; these names were originally applied to Kochab, and Pherkad, respectively, the other two stars in the rectangle of Ursa Minor.Eta Ursae Minoris is a yellow-white F-type main sequence dwarf of spectral type F5V with an apparent magnitude of +4.95, making it visible to the naked eye. It is approximately 97 light years from Earth.This star has 1.41 times the mass of the Sun, with a projected rotational velocity of 76.0 km s−1.

day

Brigitte

η Canis Majoris

Eta Trianguli Australis

Component 1

Eta cygni

Palmer Archipelago

M4III

Enjoy Entertainment

Eta Coronae Borealis C