Canes Venatici

Tuesday 19 September 2017 - 07:54:31 Posted by  Bobby

 Description of Canes Venatici

Canes Venatici represents two hunting dogs, held on a leash by the herdsman Bootes. The constellation was formed in 1687 by Johannes Hevelius from stars that had formerly been part of Ursa Major.

 The Facts

  • Depiction: The Hunting Dogs
  • Pronounced: KAY-nez-ve-NAT-eh-see
  • Genitive: Canes Venaticorum
  • Abbreviation: CVn
  • Highest in the Sky: April to May
  • Size Ranking: 38th
  • Coverage Area: 465 Sq. Degrees
  • Right Acension: 13 hours
  • Declination: 40°
  • Visibility: 90°N to 44°S

 Notable Objects

  • M3: Globular cluster
  • M51: Whirlpool Galaxy
  • M63: Sunflower Galaxy
  • M94: Group of galaxies
  • M106: Spiral galaxy
  • NGC 4244: Silver Needle Galaxy
  • NGC 4631: Humpback Whale Galaxy
  • NGC 4656/7: Hockey Stick Galaxy

 Named Stars

  • Cor Caroli, Alpha Canum Venaticorum
  • Asterion, Beta Canum Venaticorum

 Best Viewed Objects/Stars

Alpha Canum Venaticorum (Cor Caroli)

 A double star. A small telescope will easily separate the two components of magnitudes 2.9 and 5.6. Although both should appear white, some observers have reported delicate color tints. This is possibly because the brighter star has an unusual composition, as revealed by spectrscopic studies. The name Cor Caroli means Charles's heart, and commemorates King Charles I of England.


 A globular cluster on the verge of naked-eye visibility. It is easy to find with binoculars or a small telescope, in which it appears at about half the size of the full Moon. A telescope with an aperture of about 4 in (100 mm) or more is needed to see the cluster's individual stars.

M51 (The Whirlpool Galaxy)

 A spiral galaxy, seen almost face-on. This is one of the most famous galaxies in the sky and one the easiest in which to see spiral structure. The galaxy can be located using binoculars. A small telescope reveals its bright nucleus, as well as the nucleus of a smaller, irregularly shaped galaxy, NGC 5195, which is passing close by. Using a telescope of moderate to large aperture - 8 in (200 mm) or more - it should be possible to trace the outline of M51's arms. M51 and NGC 5195 are both about 25 million light-years away.

Canes Venatici

 Where to?

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Up Next- Canis Major 



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