View source for Astronomy:Gemini (constellation)

{{Short description|Zodiac constellation in the northern hemisphere}}
{{Infobox constellation
 |name = Gemini
 |abbreviation = Gem
 |genitive = Geminorum
 |pronounce = {{IPAc-en|ˈ|dʒ|ɛ|m|ᵻ|n|aɪ}}<br/>genitive {{IPAc-en|ˌ|dʒ|ɛ|m|ᵻ|ˈ|n|ɒr|əm}}
 |symbolism = the [[Biology:Twin|Twin]]s, [[Unsolved:Castor and Pollux|Castor and Pollux]]
 |RA = {{RA|7}}
 |dec= {{DEC|+20}}
 |family = [[Astronomy:Zodiac|Zodiac]]
 |quadrant = NQ2
 |areatotal = 514
 |arearank = 30th
 |numbermainstars = 8, 17
 |numberbfstars = 80
 |numberstarsplanets = 8
 |numberbrightstars = 4
 |numbernearbystars = 4
 |brighteststarname = [[Astronomy:Pollux (star)|Pollux]] (β Gem)
 |starmagnitude = 1.15
 |neareststarname = [[Astronomy:Gliese 251|Gliese 251]]<ref>{{cite web |url = http://www.ari.uni-heidelberg.de/datenbanken/aricns/cnspages/4c00526.htm |publisher = Astronomisches Rechen-Institut Heidelberg |title = ARI Data Base For Nearby Stars|access-date = 18 June 2012}}</ref>
 |stardistancely = 17.99
 |stardistancepc = 5.52
 |numbermessierobjects = 1
 |meteorshowers = [[Astronomy:Geminids|Geminids]]<br /> Rho Geminids
 |bordering = [[Astronomy:Lynx (constellation)|Lynx]]<br />[[Astronomy:Auriga (constellation)|Auriga]]<br />[[Astronomy:Taurus (constellation)|Taurus]]<br />[[Astronomy:Orion (constellation)|Orion]]<br />[[Astronomy:Monoceros (constellation)|Monoceros]]<br />[[Astronomy:Canis Minor|Canis Minor]]<br />[[Astronomy:Cancer (constellation)|Cancer]]
 |latmax = [[Earth:North Pole|90]]
 |latmin = 60
 |month = February
 |notes=
}}

'''Gemini''' is one of the [[Astronomy:Constellation|constellation]]s of the [[Astronomy:Zodiac|zodiac]] and is located in the [[Astronomy:Northern celestial hemisphere|northern celestial hemisphere]].  It was one of the 48 constellations described by the 2nd century AD astronomer [[Biography:Ptolemy|Ptolemy]], and it remains one of the 88 modern constellations today. Its name is [[Social:Latin|Latin]] for ''twins'', and it is associated with the twins [[Unsolved:Castor and Pollux|Castor and Pollux]] in [[Religion:Greek mythology|Greek mythology]]. Its old astronomical symbol is [[Image:Gemini symbol (Moskowitz, fixed width).svg|20px]] (♊︎).

==Location==
[[File:GeminiCC.jpg|thumb|280px|The constellation Gemini as it can be seen with the unaided eye, with added connecting lines.]]
[[File:Through_the_Clouds.jpg|thumb|230px|AFGL 5180 - Through the Clouds.<ref>{{cite web |title=Through the Clouds |url=https://esahubble.org/images/potw2110a/ |website=esahubble.org |access-date=12 March 2021 |language=en}}</ref>]]

[[File:Gemini.gif|thumb|An [[Engineering:Animation|animation]] of the constellation Gemini (center), "the twins", shows two parallel stick figures. Gemini is associated with the myth of Castor and Polydeuces (also known as Pollux), collectively known as the Dioscuri.<ref>{{Cite web |url=http://www.coldwater.k12.mi.us/lms/planetarium/myth/Gem.gif |title=K12.mi.us |access-date=2012-09-11 |archive-date=2005-09-27 |archive-url=https://web.archive.org/web/20050927073832/http://www.coldwater.k12.mi.us/lms/planetarium/myth/Gem.gif |url-status=dead }}</ref><ref>Constellation drawings (often but not always) following "The Stars - A new way to see them", H.A. Rey, 1952–1980, {{ISBN|0-395-24830-2}}.</ref>]]
Gemini lies between [[Astronomy:Taurus (constellation)|Taurus]] to the west and [[Astronomy:Cancer (constellation)|Cancer]] to the east, with [[Astronomy:Auriga (constellation)|Auriga]] and [[Astronomy:Lynx (constellation)|Lynx]] to the north, [[Astronomy:Monoceros (constellation)|Monoceros]] and [[Astronomy:Canis Minor|Canis Minor]] to the south, and [[Astronomy:Orion (constellation)|Orion]] to the south-west.

In classical antiquity, Cancer was the location of the Sun on the [[Astronomy:June solstice|northern solstice]] (June 21). During the first century AD, [[Astronomy:Axial precession|axial precession]] shifted it into Gemini. In 1990, the location of the Sun at the northern solstice moved from Gemini into Taurus, where it will remain until the 27th century AD and then move into [[Astronomy:Aries (constellation)|Aries]]. The Sun will move through Gemini from June 21 to July 20 through 2062.<ref>{{Cite web|url=https://www.livescience.com/4667-astrological-sign.html|title = Astrology: Why Your Zodiac Sign and Horoscope Are Wrong|website = Live Science|date = 21 September 2017}}</ref>

Gemini is prominent in the winter skies of the northern Hemisphere and is visible the entire night in December–January. The easiest way to locate the constellation is to find its two brightest stars [[Astronomy:Castor (star)|Castor]] and [[Astronomy:Pollux (star)|Pollux]] eastward from the familiar V-shaped [[Astronomy:Asterism|asterism]] (the open cluster [[Astronomy:Hyades (star cluster)|Hyades]]) of Taurus and the three stars of [[Astronomy:Orion's Belt|Orion's Belt]] ([[Astronomy:Alnitak|Alnitak]], [[Astronomy:Alnilam|Alnilam]], and [[Astronomy:Mintaka|Mintaka]]). Another way is to mentally draw a line from the [[Astronomy:Pleiades|Pleiades]] [[Astronomy:Star cluster|star cluster]] located in Taurus and the brightest star in [[Astronomy:Leo (constellation)|Leo]], [[Astronomy:Regulus|Regulus]]. In doing so, an imaginary line that is relatively close to the [[Astronomy:Ecliptic|ecliptic]] is drawn, a line which intersects Gemini roughly at the midpoint of the constellation, just below Castor and Pollux.

When the [[Astronomy:Moon|Moon]] moves through Gemini, its motion can easily be observed in a single night as it appears first west of Castor and Pollux, then aligns, and finally appears east of them.

==Features==
===Stars===
The constellation contains 85 stars of naked eye visibility.<ref>Elijah H. Burritt - [https://books.google.com/books?id=3IQoAAAAcAAJ&pg=PA66 The geography of the heavens and class book of astronomy:  Accompanied by a celestial atlas] Huntington, 1840 Retrieved 2012-06-25</ref><ref>E Colbert [https://books.google.com/books?id=Z7gXAAAAIAAJ&pg=PA33 Astronomy without a telescope: being a guide-book to the visible heavens, with all necessary maps and illustrations] George & C.W. Sherwood, 1869 Retrieved 2012-06-27</ref>

The brightest star in Gemini is Pollux, and the second-brightest is [[Astronomy:Castor (star)|Castor]]. Castor's [[Astronomy:Bayer designation|Bayer designation]] as "Alpha" arose because Johann Bayer did not carefully distinguish which of the two was the brighter when he assigned his [[Astronomy:Bayer designation|eponymous designations]] in 1603.{{sfn|Ridpath|Tirion|2017|pp=152-154}} Although the characters of myth are twins, the actual stars are physically very different from each other.

α Gem (Castor) is a sextuple [[Astronomy:Star system|star system]] 52 light-years from Earth, which appears as a magnitude 1.6 blue-white star to the unaided eye. Two [[Astronomy:Binary star|spectroscopic binaries]] are visible at magnitudes 1.9 and 3.0 with a period of 470 years. A wide-set [[Astronomy:Red dwarf|red dwarf]] star is also a part of the system; this star is an [[Astronomy:Algol variable|Algol-type]] [[Astronomy:Binary star|eclipsing binary star]] with a period of 19.5 hours; its minimum magnitude is 9.8 and its maximum magnitude is 9.3.

β Gem (Pollux) is an orange-hued [[Astronomy:Giant star|giant star]] of magnitude 1.14, 34 light-years from Earth. Pollux has an extrasolar planet revolving around it, as do two other stars in Gemini, [[Astronomy:HD 50554|HD 50554]], and [[Astronomy:HD 59686|HD 59686]].

[[Astronomy:Gamma Geminorum|γ Gem]] (Alhena) is a blue-white hued star of magnitude 1.9, 105 light-years from Earth.

[[Astronomy:Delta Geminorum|δ Gem]] (Wasat) is a long-period binary star 59 light-years from Earth. The primary is a white star of magnitude 3.5, and the secondary is an [[Astronomy:K-type main-sequence star|orange dwarf]] star of magnitude 8.2. The period is over 1000 years; it is divisible in medium amateur telescopes.

[[Astronomy:Epsilon Geminorum|ε Gem]] (Mebsuta), a [[Astronomy:Double star|double star]], includes a primary [[Astronomy:Yellow supergiant star|yellow supergiant]] of magnitude 3.1, nine hundred light-years from Earth. The optical companion, of magnitude 9.6, is visible in binoculars and small telescopes.{{sfn|Ridpath|Tirion|2017|pp=152-154}}

[[Astronomy:Zeta Geminorum|ζ Gem]] (Mekbuda) is a double star, whose primary is a [[Astronomy:Cepheid variable|Cepheid variable]] star with a period of 10.2 days; its minimum magnitude is 4.2 and its maximum magnitude is 3.6. It is a yellow supergiant, 1,200 light-years from Earth, with a radius that is 60 times solar, making it approximately 220,000 times the size of the [[Astronomy:Sun|Sun]]. The companion, a magnitude 7.6 star, is visible in binoculars and small amateur telescopes.

[[Astronomy:Eta Geminorum|η Gem]] (Propus) is a binary star with a variable component. 380 light-years away, it has a period of 500 years and is only divisible in large amateur telescopes. The primary is a [[Astronomy:Semiregular variable star|semi-regular]] [[Astronomy:Red giant|red giant]] with a period of 233 days; its minimum magnitude is 3.9 and its maximum magnitude is 3.1. The secondary is of magnitude 6.{{sfn|Ridpath|Tirion|2017|pp=152-154}}

[[Astronomy:Kappa Geminorum|κ Gem]] is a binary star 143 light-years from Earth. The primary is a [[Astronomy:Yellow giant|yellow giant]] of magnitude 3.6; the secondary is of magnitude 8. The two are only divisible in larger amateur instruments because of the discrepancy in brightness.

[[Astronomy:Nu Geminorum|ν Gem]] is a double star divisible in binoculars and small amateur telescopes. The primary is a [[Astronomy:Blue giant|blue giant]] of magnitude 4.1, 550 light-years from Earth, and the secondary is of magnitude 8.

[[Astronomy:38 Geminorum|38 Gem]], a binary star, is also divisible in small amateur telescopes, 84 light-years from Earth. The primary is a white star of magnitude 4.8 and the secondary is a yellow star of magnitude 7.8.{{sfn|Ridpath|Tirion|2017|pp=152-154}}

[[Astronomy:U Geminorum|U Gem]] is a [[Astronomy:Dwarf nova|dwarf nova]] type [[Astronomy:Cataclysmic variable star|cataclysmic variable]] discovered by [[Biography:John Russell Hind|J. R. Hind]] in 1855.<ref>{{cite web |url = http://www.aavso.org/vsots_ugem |publisher = AAVSO |title = U Geminorum |access-date = 7 June 2012}}</ref>

[[Astronomy:Mu Geminorum|Mu Gem]] (Tejat) is the Bayer designation for a star in the northern constellation of Gemini. It has the traditional name Tejat Posterior, which means back foot, because it is the foot of Castor, one of the Gemini twins.

===Deep-sky objects===
{| class=wikitable align=right
|+ Deep sky objects
|- align=center
|colspan=3|[[File:M35atlas.jpg|300px]]<BR/>Messier 35 and [[Astronomy:NGC 2158|NGC 2158]]
|- align=center valign=bottom
|[[File:ESO Very Large Telescope images the Medusa Nebula.jpg|100px]]<BR/>[[Astronomy:Medusa Nebula|Medusa Nebula]]
|[[File:Ngc2392.jpg|100px]]<BR/>[[Astronomy:NGC 2392|NGC 2392]]
|[[File:Medusa nebula.jpg|100px]]<BR/>[[Astronomy:Medusa Nebula|Medusa Nebula]]
|}

[[Astronomy:Messier 35|M35]] (NGC 2168) is a large, elongated [[Astronomy:Open cluster|open cluster]] of magnitude 5, discovered in the year 1745 by Swiss astronomer [[Biography:Jean-Philippe de Chéseaux|Philippe Loys de Chéseaux]]. It has an area of approximately 0.2 square degrees, the same size as the full moon. Its high magnitude means that M35 is visible to the unaided eye under dark skies; under brighter skies it is discernible in binoculars. The 200 stars of M35 are arranged in chains that curve throughout the cluster; it is 2800 light-years from Earth. Another open cluster in Gemini is [[Astronomy:NGC 2158|NGC 2158]]. Visible in large amateur telescopes and very rich, it is more than 12,000 light-years from Earth.{{sfn|Ridpath|Tirion|2017|pp=152-154}}

[[Astronomy:NGC 2392|NGC 2392]] is a [[Astronomy:Planetary nebula|planetary nebula]] with an overall magnitude of 9.2, located 4,000 light-years from Earth.{{sfn|Levy|2005|p=126}} In a small amateur telescope, its 10th magnitude central star is visible, along with its blue-green elliptical disk. It is said to resemble the head of a person wearing a parka.{{sfn|Ridpath|Tirion|2017|pp=152-154}}

The Medusa Nebula is another planetary nebula, some 1,500 light-years distant. [[Astronomy:Geminga|Geminga]] is a [[Astronomy:Neutron star|neutron star]] approximately 550 light-years from Earth. Other objects include [[Astronomy:NGC 2129|NGC 2129]], [[Astronomy:NGC 2158|NGC 2158]], [[Astronomy:NGC 2266|NGC 2266]], NGC 2331 and [[Astronomy:NGC 2355|NGC 2355]].

{{clear}}

===Meteor showers===
The [[Astronomy:Geminids|Geminids]] is a bright meteor shower that peaks on December 13–14. It has a maximum rate of approximately 100 meteors per hour, making it one of the richest meteor showers.{{sfn|Ridpath|Tirion|2017|pp=152-154}} The Epsilon Geminids peak between October 18 and October 29 and have only been recently confirmed. They overlap with the [[Astronomy:Orionids|Orionids]], which make the Epsilon Geminids difficult to detect visually. Epsilon Geminid meteors have a higher velocity than Orionids.<ref>{{cite journal |journal = Sky & Telescope |date = September 2012 |last = Jenniskens |first = Peter |page = 22 |title = Mapping Meteoroid Orbits: New Meteor Showers Discovered}}</ref>

==Mythology==
[[File:Sidney Hall - Urania's Mirror - Gemini.jpg|thumb|280px|Gemini as depicted in ''[[Astronomy:Urania's Mirror|Urania's Mirror]]'', a set of constellation cards published in London c.1825.]]
[[File:Grupo de San Ildefonso (Museo del Prado) 03.jpg|thumb|280px|Sculpture showing Castor and Pollux, the legend behind the third astrological sign in the Zodiac and the constellation of Gemini]]

In [[Astronomy:Babylonian astronomy|Babylonian astronomy]], the stars Castor and Pollux were known as the Great Twins. The Twins were regarded as minor gods and were called [[Astronomy:Lugal-irra and Meslamta-ea|Meshlamtaea and Lugalirra]], meaning respectively 'The One who has arisen from the Underworld' and the 'Mighty King'. Both names can be understood as titles of Nergal, the major Babylonian god of plague and pestilence, who was king of the Underworld.<ref>''Babylonian Star-lore'' by Gavin White, Solaria Pubs, 2008, page 125</ref>

In [[Religion:Greek mythology|Greek mythology]], Gemini was associated with the myth of Castor and Pollux, the children of Leda and Argonauts both. Pollux was the son of [[Religion:Zeus|Zeus]], who seduced Leda, while Castor was the son of Tyndareus, king of Sparta and Leda's husband. Castor and Pollux were also mythologically associated with [[Astronomy:St. Elmo's fire|St. Elmo's fire]] in their role as the protectors of sailors.{{sfn|Ridpath|Tirion|2017|pp=150-152}} When Castor died, because he was mortal, Pollux begged his father Zeus to give Castor immortality, and he did, by uniting them together in the heavens.

==Visualizations==
[[File:Gemini constellation map visualization 1.PNG|left|thumb|280px|Diagram of H. A. Rey's alternative way to connect the stars of the constellation Gemini. Twins are shown holding hands.]]

Gemini is dominated by Castor and Pollux, two bright stars that appear relatively very closely together forming an o shape, encouraging the mythological link between the constellation and twinship. The twin above and to the right (as seen from the Northern Hemisphere) is Castor, whose brightest star is α Gem; it is a second-magnitude star and represents Castor's head. The twin below and to the left is Pollux, whose brightest star is β Gem (more commonly called Pollux); it is of the first magnitude and represents Pollux's head. Furthermore, the other stars can be visualized as two parallel lines descending from the two main stars, making it look like two figures.

H. A. Rey has suggested an alternative to the traditional visualization that connected the stars of Gemini to show twins holding hands. Pollux's torso is represented by the star [[Astronomy:Upsilon Geminorum|υ Gem]], Pollux's right hand by [[Astronomy:Iota Geminorum|ι Gem]], Pollux's left hand by [[Astronomy:Kappa Geminorum|κ Gem]]; all three of these stars are of the fourth magnitude. Pollux's pelvis is represented by the star [[Astronomy:Delta Geminorum|δ Gem]], Pollux's right knee by [[Astronomy:Zeta Geminorum|ζ Gem]], Pollux's right foot by [[Astronomy:Gamma Geminorum|γ Gem]], Pollux's left knee by [[Astronomy:Lambda Geminorum|λ Gem]], and Pollux's left foot by [[Astronomy:Xi Geminorum|ξ Gem]]. γ Gem is of the second magnitude, while δ and ξ Gem are of the third magnitude. Castor's torso is represented by the star [[Astronomy:Tau Geminorum|τ Gem]], Castor's left hand by [[Astronomy:Iota Geminorum|ι Gem]] (which he shares with Pollux), Castor's right hand by [[Astronomy:Theta Geminorum|θ Gem]]; all three of these stars are of the fourth magnitude. Castor's pelvis is represented by the star [[Astronomy:Epsilon Geminorum|ε Gem]], Castor's left foot by [[Astronomy:Nu Geminorum|ν Gem]], and Castor's right foot by [[Astronomy:Mu Geminorum|μ Gem]] and [[Astronomy:Eta Geminorum|η Gem]]; ε, μ, and η Gem are of the third magnitude. The brightest star in this constellation is Pollux.

==Astronomy==
In ''Meteorologica'' (1 343b30) [[Biography:Aristotle|Aristotle]] mentions that he observed Jupiter in [[Astronomy:Conjunction|conjunction]] with and then [[Astronomy:Occultation|occulting]] a star in Gemini. This is the earliest-known observation of this nature.<ref>Star Names: Their Lore and Meaning by Richard Hinckley Allen, Dover, 1963, page 229</ref> A study published in 1990 suggests the star involved was 1 Geminorum and the event took place on 5 December 337 BC.<ref>{{cite journal |title=New Evidence for the Dating of Aristotle ''Meteorologica'' 1-3 |first1=Sheldon M. |last1=Cohen |first2=Paul |last2=Burke |journal=Classical Philology |volume=85 |issue=2 |date=1990 |pages=126–129 |doi= 10.1086/367188|jstor=269702 |s2cid=162257274 }}</ref>

When William Herschel discovered [[Astronomy:Uranus|Uranus]] on 13 March 1781 it was located near η Gem.<ref>Star Names: Their Lore and Meaning by Richard Hinckley Allen, Dover, 1963, page 236</ref> In 1930 [[Biography:Clyde Tombaugh|Clyde Tombaugh]] exposed a series of [[Physics:Photographic plate|photographic plate]]s centred on δ Gem and discovered [[Astronomy:Pluto|Pluto]].<ref>The Cambridge Guide to the Constellations by Michael E. Bakich, Cambridge University Press, 1995, page 210</ref>

==Equivalents==
In [[Astronomy:Chinese astronomy|Chinese astronomy]], the stars that correspond to Gemini are located in two areas: the [[Astronomy:White Tiger (China)|White Tiger of the West]] (西方白虎, ''Xī Fāng Bái Hǔ'') and the [[Astronomy:Vermilion Bird|Vermillion Bird of the South]] (南方朱雀, ''Nán Fāng Zhū Què'').

In some cultures, the twin in Gemini refers to 'the unborn twin' and represents a spiritual or dual self that exists within. {{Citation needed|date=March 2023}}

==Astrology==
{{Main|Unsolved:Gemini (astrology)}}
{{As of|2011}}, the Sun appears in the constellation Gemini from June 21 to July 20. In tropical astrology, the Sun is considered to be in the sign [[Unsolved:Gemini (astrology)|Gemini]] from May 22 to June 21, and in sidereal astrology, from June 16 to July 16.<ref>{{cite book |author1=Robert Dinwiddie |author2=David Hughes |author3=Geraint H. Jones |author4=Ian Ridpath |author5=Carole Stott |author6=Giles Sparrow |title=The Stars: The Definitive Visual Guide to the Cosmos |publisher=DK Publishing |pages=166}}</ref>

==See also==
*[[Astronomy:Geminga|Geminga]], Gemini gamma-ray source
*[[Astronomy:Gemini in Chinese astronomy|Gemini in Chinese astronomy]]
*[[Astronomy:IC 444|IC 444]], reflection nebula
*Messier 35 open cluster
* [[Astronomy:Cancer Minor (constellation)|Cancer Minor (constellation)]] - Obsolete constellation inside modern Gemini

==References==
{{Reflist}}

==Sources ==
*{{cite book |first = David H. |last = Levy |title = Deep Sky Objects |publisher = [[Philosophy:Prometheus Books|Prometheus Books]] |date = 2005 |isbn = 1-59102-361-0 |url-access = registration |url = https://archive.org/details/deepskyobjects00davi }}
*{{cite book|last=Rey|first=H. A.|title=The Stars&nbsp;— A New Way To See Them|edition=Enlarged World-Wide|publisher=Houghton Mifflin|place=Boston|date=1997|isbn=0-395-24830-2|url-access=registration|url=https://archive.org/details/stars00hare}}.
*{{cite book|last1=Ridpath|first1=Ian|last2=Tirion|first2=Wil|date=2017|title=Stars and Planets Guide|publisher=Collins|place=London|isbn=978-0-00-823927-5}} Princeton: Princeton University Press. {{ISBN|978-0-691-17788-5}}.

==External links==
{{Commons and category|Gemini|Gemini (constellation)}}
*The Deep Photographic Guide to the Constellations: [http://www.allthesky.com/constellations/gemini/ Gemini]
*[http://astrojan.nhely.hu/index.htm Astrojan Astronomical Picture Collection] {{Webarchive|url=https://web.archive.org/web/20210831010828/https://astrojan.eu5.org/index.htm |date=2021-08-31 }}: [http://astrojan.nhely.hu/gemini.htm The clickable Gemini]
*WikiSky: [http://wikisky.org/?object=Gemini&zoom=2 Gemini constellation]
*Ian Ridpath's Star Tales: [http://www.ianridpath.com/startales/gemini.html Gemini]
*APOD Pictures of Gemini and Deep Sky Objects:
:#[<!-- http://antwrp.gsfc.nasa.gov/apod/ap090506.html -->http://apod.nasa.gov/apod/ap090506.html A Spring Sky Over Hirsau Abbey]
:#[<!-- http://antwrp.gsfc.nasa.gov/apod/ap090503.html -->http://apod.nasa.gov/apod/ap090503.html The Eskimo Nebula from Hubble]
:#[<!-- http://antwrp.gsfc.nasa.gov/apod/ap100612.html -->http://apod.nasa.gov/apod/ap100612.html The Medusa Nebula]
:#[<!-- http://antwrp.gsfc.nasa.gov/apod/ap031215.html -->http://apod.nasa.gov/apod/ap031215.html Open Star Clusters M35 and NGC 2158]
:#[<!-- http://antwrp.gsfc.nasa.gov/apod/ap050319.html -->http://apod.nasa.gov/apod/ap050319.html NGC 2266: Old Cluster in the NGC]
*[https://iconographic.warburg.sas.ac.uk/category/vpc-taxonomy-017061 Warburg Institute Iconographic Database (medieval and early modern images of Gemini)]

{{Stars of Gemini}}
{{Constellations}}
{{Zodiac}}
{{Sky|07|00|00|+|20|00|00|10}}

{{DEFAULTSORT:Gemini (constellation)}}
[[Category:Gemini (constellation)| ]]
[[Category:Constellations]]
[[Category:Northern constellations]]
[[Category:Constellations listed by Ptolemy]]

{{Sourceattribution|Gemini (constellation)}}