Canes Venatici

Template:Infobox Constellation

Canes Venatici (Latin for hunting dogs) is a small northern constellation that was introduced by Johannes Hevelius in the 17th century. It is supposed to represent the dogs Chara and Asterion held on a leash by Boötes.

Contents

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 α CVn, whose proper name is Cor Caroli, named by Edmund Halley in memory of the English King Charles I. It is of magnitude 2.90.

Y CVn, sometimes known as "La Superba", is a semiregular variable star that varies between magnitudes 4.7 and 6.2 over a period of around 158 days. It is a very red star.

Notable deep sky objects

Canes Venatici contains five Messier objects, including five galaxies. One of the more significant galaxies in Canes Venatici is the Whirlpool Galaxy, M51 (NGC 5194 and NGC 5195), a spiral galaxy that is seen face on. This was the first galaxy recognised as having a spiral structure, this structure being first observed by Lord Rosse in 1845.

Missing image
M51.arp.500pix.jpg
M51, known as the Whirlpool Galaxy. The companion galaxy (top of picture) is being disrupted by the gravitational forces of M51.

Other galaxies in Canes Venatici include the Sunflower Galaxy (M63 or NGC 5055), Spiral Galaxy M94, and Spiral Galaxy M106,

Messier 3 (M3, or NGC 5272) is a globular cluster. It is 18′ in diameter, and at magnitude 6.3 is bright enough to be seen in binoculars.

Table of leading stars

This table lists all stars in Canes Venatici with either a Bayer designation or a Flamsteed designation.

Common name Bayer designation Flamsteed designation Variable designation Other designations Right ascension Declination Magnitude
2 ADS 8489 12h 16m 07.6s +40° 39′ 37″ 5.66
3 12h 19m 48.7s +48° 59′ 03″ 5.29
4 AI 12h 23m 47.0s +42° 32′ 34″ 6.06v
5 Var 12h 24m 01.5s +51° 33′ 44″ 4.80v
6 12h 25m 50.9s +39° 01′ 07″ 5.02
7 12h 30m 02.9s +51° 32′ 08″ 6.21
β 8 12h 33m 44.5s +41° 21′ 27″ 4.26
9 12h 38m 46.3s +40° 52′ 28″ 6.37
10 12h 44m 59.5s +39° 16′ 44″ 5.95
11 12h 48m 41.8s +48° 28′ 01″ 6.27
Cor Caroli α 12 ADS 8706 12h 56m 01.7s +38° 19′ 06″ 2.90
14 13h 05m 44.5s +35° 47′ 56″ 5.25
15 ADS 8805 13h 09m 42.0s +38° 32′ 02″ 6.28
17 ADS 8805 13h 10m 03.2s +38° 29′ 56″ 5.91
19 13h 15m 32.0s +40° 51′ 19″ 5.79
20 AO 13h 17m 32.5s +40° 34′ 21″ 4.73v
21 BK 13h 18m 14.5s +49° 40′ 55″ 5.15v
23 13h 20m 19.0s +40° 09′ 02″ 5.60
24 13h 34m 27.3s +49° 00′ 58″ 4.70
25 ADS 8974 13h 37m 27.6s +36° 17′ 42″ 4.82

Source: The Bright Star Catalogue, 5th Revised Ed.

Stars

Stars with proper names:
  • Cor Caroli (12/α2 CVn) or Chara? 2.89 – α2 CVn variable prototype
    = The heart of Charles II [the star brightened after his coronation]
  • Chara or Asterion? (8/β CVn) 4.26 – nearby star
    < χαρά Joy, dear
  • La Superba (Y CVn) 4.99 – carbon star
Stars with Bayer designations:
Stars with Flamsteed designations:
1 CVn 6.18; 2 CVn 5.69; 3 CVn 5.28; 4 CVn 6.03; 5 CVn 4.76; 6 CVn 5.01; 7 CVn 6.21; 9 CVn 6.35; 10 CVn 5.95; 11 CVn 6.25; 14 CVn 5.20; 15 CVn 6.25; 17 CVn 5.91; 19 CVn 5.77; 20 CVn 4.72; 21 CVn 5.14; 23 CVn 5.60; 24 CVn 4.68; 25 CVn 4.82

Template:ConstellationsByHevelius Template:ConstellationList

External links

Template:Commons

de:Jagdhunde (Sternbild) es:Canes Venatici fr:Chiens de chasse ko:사냥개자리 id:Canes Venatici it:Canes Venatici nl:Canes venatici ja:りょうけん座 pl:Psy Gończe (gwiazdozbiór) pt:Canes Venatici fi:Ajokoirat th:กลุ่มดาวหมาล่าเนื้อ

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