Canes Venatici
6435
226063187
2008-07-16T17:41:59Z
Rursus
31073
1st vowel short in Lat. "canes"
{{Infobox Constellation|
name = Canes venatici |
abbreviation = CVn |
genitive = Canum Venaticorum |
symbology = the Hunting Dogs |
RA = 13 |
dec= +40 |
areatotal = 465 |
arearank = 38th |
numbermainstars = 2 |
numberbfstars = 21 |
numberstarsplanets = 0 |
numberbrightstars = 1 |
numbernearbystars = 1 |
brighteststarname = [[Cor Caroli]] (α CVn) |
starmagnitude = 2.90 |
neareststarname = [[Beta Canum Venaticorum|β CVn]] |
stardistance = 27.4 |
numbermessierobjects = 5 |
meteorshowers = [[Canes Venaticids]] |
bordering = [[Ursa Major]]<br />[[Boötes]]<br />[[Coma Berenices]] |
latmax = 90 |
latmin = 40 |
month = May |
notes=}}
'''Canes Venatici''' ({{IPA-all|ˈkaneːs veːˈnaːtisiː}}, {{IPAlink-en|ˈkɑːne͡ız ve͡ıˈnɑːtɪsiː}} or {{IPAlink-en|ˈkeɪniːz vɪˈnætɪsa͡ɪ}}, {{lang-la|[[hunting dog]]s}}) is a small northern [[constellation]] that was introduced by [[Johannes Hevelius]] in the 17th century. It represents the dogs ''Chara'' and ''Asterion'' held on a leash by [[Boötes]].
==Notable features==
Canes Venatici is one of three constellations that represent dogs, along with [[Canis Major]] and [[Canis Minor]]. The constellation's brightest [[star]] is [[Cor Caroli]] (α² CVn), named by [[Edmund Halley]] in memory of the king [[Charles I of England|Charles I]], [[List of English monarchs|King of England]], or his son, [[Charles II of England|Charles II]]. It is of [[apparent magnitude|magnitude]] 2.90.
[[La Superba]] (Y CVn) is a [[semiregular variable star]] that varies between magnitudes 4.7 and 6.2 over a period of around 158 days. It is a [[carbon star]] and is famous for being deep red.
[[AM Canum Venaticorum|AM CVn]], a very blue star of magnitude 14, is the prototype of a special class of [[cataclysmic variable star]]s, in which the companion star is a [[white dwarf]], rather than a [[main sequence star]]. [[RS Canum Venaticorum|RS CVn]] is the prototype of a [[RS Canum Venaticorum variable|special class of binary stars]]<ref>[http://simbad3.u-strasbg.fr/sim-id.pl?protocol=html&Ident=RS+CVn SIMBAD Query Result: RS CVn -- Variable of RS CVn type] on the SIMBAD database</ref> of [[chromosphere|chromospherically]] active and optically [[variable star|variable]] components.
==Notable deep sky objects==
Canes Venatici contains five [[Messier object]]s, including four [[galaxy|galaxies]]. One of the more significant galaxies in Canes Venatici is the [[Whirlpool Galaxy]] (M51, NGC 5194) and [[NGC 5195]], a small barred [[spiral galaxy]] that is seen face on. This was the first galaxy recognised as having a spiral structure, this structure being first observed by [[William Parsons, 3rd Earl of Rosse|Lord Rosse]] in 1845.
Other notable spiral galaxies in Canes Venatici are the [[Sunflower Galaxy]] (M63, NGC 5055), [[Messier 94]] (NGC 4736), and [[Messier 106]] (NGC 4258).
[[Messier 3]] (NGC 5272) is a [[globular cluster]]. It is 18' in diameter, and at magnitude 6.3 is bright enough to be seen with [[binoculars]].
==History==
[[Image:Canes Venatici.gif|left|200px|thumb|Canes Venatici depicted in an old star atlas.]]
The name of the [[constellation]] of [[Bootes]] means "herdsman". Some of its component stars were traditionally described as representing his [[cudgel]], which in [[Greek language|Greek]] was called Κολλοροβος. When the [[Almagest]] was translated from Greek to [[Arabic]], the translator did not know the Greek word Κολλοροβος, but rendered it as the nearest-looking Arabic word: ''dhāt al-kullāb'' ذات الكلاب "having a [[hook]]", probably thinking of a [[shepherd's crook]]. When the Arabic text was translated into a Western European language, the translator mistook the Arabic word كلاب as ''kilāb'' = "dogs": [[Latin]] ''hastile habens canes'' = "spearshaft having dogs", which expression floated about the astronomical literature until [[Johannes Hevelius|Hevelius]] decided to find those dogs in the sky.
The northern of the two hunting dogs was named ''Asterion'', and was sometimes regarded as an independent constellation or at least an asterism. The southern dog was named ''Chara''. The name of the dogs still lives in the alternate names of [[Cor Caroli|α CVn]].
The star [[Cor Caroli|α CVn]] was initially regarded as an independent asterism or constellation. Its full name was ''Cor Caroli Regis Martyris'' (after [[Charles I of England]] who was executed for high treason) <ref>[http://www.lindahall.org/events_exhib/exhibit/exhibits/stars/she.htm Linda Hall exhibit: Out of This World, page 15] (Manilius, Marcus)</ref>, but irrespective of royal sympathies, such a name required abbreviation. Furthermore, the constellation contained just 1 star, α CVn, which in the end got the name '''Cor Caroli'''. <!-- somebody fix this stupid formulation of mine! [[User:Rursus]] -->
== Citations ==
{{reflist}}
== References ==
* Ian Ridpath and Wil Tirion (2007). ''Stars and Planets Guide'', Collins, London. ISBN 978-0007251209. Princeton University Press, Princeton. ISBN 978-0691135564.
==External links==
{{Commons|Canes Venatici}}
* [http://www.daveweb.co.uk/SloanCV.pdf Photographic Catalogue of Deep Sky Objects in Canes Venatici]
* [http://www.allthesky.com/constellations/canesvenatici/ The Deep Photographic Guide to the Constellations: Canes Venatici]
* [http://www.ianridpath.com/startales/canesvenatici.htm Star Tales – Canes Venatici]
{{navconstel}}
[[Category:Canes Venatici constellation| ]]
[[Category:Constellations]]
[[bn:সারমেয় মণ্ডল]]
[[be:Сузор'е Гончыя Псы]]
[[ca:Llebrers (constel·lació)]]
[[cs:Souhvězdí Honících psů]]
[[co:Canes Venatici]]
[[da:Jagthundene]]
[[de:Jagdhunde (Sternbild)]]
[[el:Κύνες Θηρευτικοί]]
[[es:Canes Venatici]]
[[eo:Ĉashundoj (konstelacio)]]
[[fa:تازیها (صورت فلکی)]]
[[fr:Chiens de chasse]]
[[ga:Na Madraí Fiaigh]]
[[gl:Canes Venatici]]
[[ko:사냥개자리]]
[[hr:Lovački psi (zviježđe)]]
[[id:Canes Venatici]]
[[is:Veiðihundarnir]]
[[it:Cani da Caccia (costellazione)]]
[[he:כלבי ציד (קבוצת כוכבים)]]
[[la:Canes Venatici (sidus)]]
[[lv:Medību Suņi]]
[[lb:Canes Venatici (Stärebild)]]
[[lt:Skalikai]]
[[hu:Vadászebek csillagkép]]
[[nl:Jachthonden]]
[[ja:りょうけん座]]
[[no:Jakthundene]]
[[nn:Jakthundane]]
[[pl:Psy Gończe (gwiazdozbiór)]]
[[pt:Canes Venatici]]
[[ro:Câinii de Vânătoare (constelaţie)]]
[[ru:Гончие Псы (созвездие)]]
[[sk:Súhvezdie Poľovné psy]]
[[fi:Ajokoirat]]
[[sv:Jakthundarna]]
[[th:กลุ่มดาวสุนัขล่าเนื้อ]]
[[vi:Lạp Khuyển]]
[[tr:Canes Venatici (takımyıldız)]]
[[uk:Гончі Пси (сузір'я)]]
[[zh:猎犬座]]