Lupus (constellation): Difference between revisions
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{{other uses|lupus (disambiguation)}} |
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{{Infobox Constellation |
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| name = Lupus |
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| abbreviation = Lup |
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| genitive = Lupi |
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| pronounce = {{IPAc-en|ˈ|l|juː|p|ə|s}}, genitive {{IPAc-en|ˈ|l|juː|p|aɪ}} |
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| symbolism = the [[Wolf]] |
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| RA = 15.3 |
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| dec= −45 |
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| family = [[Hercules Family|Hercules]] |
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| quadrant = SQ3 |
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| areatotal = 334 |
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| arearank = 46th |
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| numbermainstars = 9 |
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| numberbfstars = 41 |
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| numberstarsplanets = 5 |
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| numberbrightstars = 3 |
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| numbernearbystars = 1 |
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| brighteststarname = [[Alpha Lupi|α Lup]] (Men) |
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| starmagnitude = 2.30 |
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| neareststarname = [[LHS 397]] |
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| stardistancely = 19.35 |
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| stardistancepc = 5.93 |
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| numbermessierobjects = 0 |
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| meteorshowers = |
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| bordering = [[Norma (constellation)|Norma]]<br />[[Scorpius]]<br />[[Circinus (constellation)|Circinus]]<br />[[Centaurus]]<br />[[Libra (constellation)|Libra]]<br />[[Hydra (constellation)|Hydra]] (corner) |
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| latmax = [[35th parallel north|35]] |
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| latmin = [[South Pole|90]] |
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| month = June |
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| notes=}} |
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'''Lupus''' {{IPAc-en|ˈ|l|juː|p|ə|s}} is a [[constellation]] in the southern sky. Its name is [[Latin]] for [[wolf]]. Lupus was one of the 48 constellations listed by the 2nd century astronomer [[Ptolemy]], and it remains one of the 88 modern constellations. It lies between [[Centaurus]] and [[Scorpius]]. |
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==Notable features== |
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[[Image:Constellation Lupus.jpg|thumb|left|256px|The constellation Lupus as it can be seen by the naked eye.]] |
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===Stars=== |
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Lupus has around 30 [[star|stars]] of 2nd and 3rd [[apparent magnitude|magnitude]] and 70 of greater than 6th, including a number of [[binary star|binary]] or [[multiple star]]s. In his [[star catalogue|catalogue]], [[Patrick Moore]] gives the [[Proper names (astronomy)|names]] ''Men'' for [[Alpha Lupi|α Lupi]], the brightest star in Lupus, and ''KeKouan'' for the [[blue giant]] [[Beta Lupi|β Lupi]].<ref>{{cite book |
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| last=Moore | first=P., | year=1983 |
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| authorlink= |
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| title=The Guinness Book of Astronomy Facts and Feats |
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| edition=Second | publisher=Guinness Superlatives Ltd |
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| location=Middlesex | isbn=0-85112-291-4 |
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| page=223}}</ref> They also have the Chinese names {{lang|zh|（南）門}} and {{lang|zh|騎官}}. |
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Most of the brightest stars in Lupus are massive members of the nearest [[stellar association|OB association]], [[Scorpius-Centaurus Association|Scorpius-Centaurus]].<ref>{{cite journal|title=The Nearest OB Association: Scorpius-Centaurus (Sco OB2)|author=Preibisch, T., Mamajek, E.|year=2008|journal=Handbook of Star-Forming Regions|volume=2|pages=0|bibcode=2008hsf2.book..235P|arxiv=0809.0407|last2=Mamajek}}</ref> |
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===Deep-sky objects=== |
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Towards the north of the constellation are [[globular cluster]]s [[NGC 5824]] and [[NGC 5986]], and close by the dark [[nebula]] [[B 228]]. To the south are two [[open cluster]]s, [[NGC 5822]] and [[NGC 5749]], as well as [[globular cluster]] [[NGC 5927]] on the eastern border with [[Norma (constellation)|Norma]]. On the western border are two [[spiral galaxy|spiral galaxies]] and the [[Wolf-Rayet star|Wolf-Rayet]] [[planetary nebula]] [[IC 4406]], containing some of the hottest stars in existence. IC 4406, also called the Retina Nebula, is a cylindrical nebula at a distance of 5,000 light-years. It has [[dust lanes]] throughout its center.<ref>{{cite book |title = 300 Astronomical Objects: A Visual Reference to the Universe |last1=Wilkins |first1=Jamie |last2=Dunn |first2 = Robert |publisher = Firefly Books |year = 2006 |accessdate = 29 April 2012 |edition = 1st |location=Buffalo, New York |isbn = 978-1-55407-175-3}}</ref> Another planetary nebula, [[NGC 5882]], is towards the centre of the constellation. The transiting exoplanet [[Lupus-TR-3b]] lies in this constellation. The historic supernova [[SN 1006]] is described by various sources as appearing on April 30 to May 1, 1006, in the constellation of Lupus. |
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[[ESO 274-1]] is a [[spiral galaxy]] seen from edge-on that requires an amateur telescope with at least 12 inches of aperture to view. It can be found by using [[Lambda Lupi]] and [[Mu Lupi]] as markers, and can only be seen under very dark skies. It is 9 arcminutes by 0.7 arcminutes with a small, elliptical nucleus.{{sfn|Dalrymple|2013|p=41}} |
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==Mythology and history== |
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In ancient times, the constellation was considered an [[Asterism (astronomy)|asterism]] within [[Centaurus]], and was considered to have been an arbitrary animal, killed, or about to be killed, on behalf of, or for, Centaurus.<ref>Mark R. Chartrand III (1983) Skyguide: A Field Guide for Amateur Astronomers, p. 160 (ISBN 0-307-13667-1).</ref> An alternative visualization, attested by [[Eratosthenes]], saw this constellation as a wineskin held by Centaurus.<ref>Chartrand, p. 172.</ref> It was not separated from Centaurus until [[Hipparchus]] of [[Bithynia]] named it ''Therion'' (meaning beast) in the 200s BC. No particular animal was associated with it until the Latin translation of Ptolemy's work identified it with the wolf. |
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The Greek constellation is probably based on the Babylonian figure known as the Mad Dog (UR.IDIM). This was a strange hybrid creature that combined the head and torso of a man with the legs and tail of a lion (the cuneiform sign 'UR' simply refers to a large carnivore; lions, wolves and dogs are all included). It is often found in association with the sun god and another mythical being called the Bison-man, which is supposedly related to the Greek constellation of Centaurus.<ref>''Babylonian Star-lore'' by Gavin White, Solaria Pubs, 2008, page 145 & 59ff</ref> |
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== Notes == |
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{{Reflist}} |
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== See also == |
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* [[Traditional Chinese star names]] |
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* [[Lupus (Chinese astronomy)]] |
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==References== |
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* {{cite journal |
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| first = Les |
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| last = Dalrymple |
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| journal = Sky & Telescope |
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| date = May 2013 |
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| title = Exploring the M83 Galaxy Group |
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| ref = harv |
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}} |
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* Ian Ridpath and Wil Tirion (2007). ''Stars and Planets Guide'', Collins, London. ISBN 978-0-00-725120-9. Princeton University Press, Princeton. ISBN 978-0-691-13556-4. |
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==External links== |
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{{Commons and category|Lupus|Lupus (constellation)}} |
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* [http://www.ianridpath.com/startales/lupus.htm Star Tales – Lupus] |
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* [http://www.constellation-guide.com/constellation-list/lupus-constellation/ Lupus Constellation at Constellation Guide] |
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{{Stars of Lupus}} |
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{{navconstel}} |
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{{Sky|15|18|00|-|45|00|00|10}} |
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{{DEFAULTSORT:Lupus (Constellation)}} |
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[[Category:Lupus (constellation)| ]] |
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[[Category:Constellations]] |
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[[Category:Southern constellations]] |
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[[Category:Constellations listed by Ptolemy]] |
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