Free Constellations Clipart

Abbreviation:  Cnc
English Name:  The Crab
Genitive: Acubens
  Northern Hemisphere 
Location: Between the constellations of Leo and Gemini.
Visible between latitudes:  +45 and -90 degrees
Best season: Spring
Seen in three season: 
Winter, Spring and Summer
Best seen in:
Seen between: January and May
Right Ascension (RA):  09 hour
Declination (DEC): +20 degrees
Area (square degrees):  506 (31st)

Cancer (The Crab)

  • It lies between Gemini (The Twin) and Leo (The Lion).
  • A dim and largely zodiacal constellation.
  • In fact, it is very faint with no stars brighter than magnitude +4.0.

Messier Objects

  • M44 – Praesepe, The Beehive Cluster; there are actually about 200 stars in Open Cluster, spread over an area three times the diameter of the Full Moon.
  • M67 – Large Open Cluster with about the same size of Full Moon – readily visible in binocular.

Features of interest

  • M44 - To the naked-eye, it appears as a little misty patch in clear skies even if there is a certain amount of moonless/moonlight. Binoculars reveal it as a large cluster of stars and in a telescope at the lowest power the eyepiece.

Named Stars

  • Acubens (Alpha Cnc)
  • Altarf (Beta Cnc)
  • Asellus Borealis (Gamma Cnc)
  • Asellus Australis (Delta Cnc)
  • Tegmen (Zeta 1 Cnc)


  • Photo of the constellation – Cancer, as it appears to the naked-eye. (Lines have been added for clarity.)
  • Sky Chart  –  Cancer
  • List of stars in Cancer.


Back to The 88 Constellations Lists  page.

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