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Almanac > Constellations

Cancer

Cancer is one of the 88 recognized constellations. It is best seen in March between latitudes +90° and -60°.
 

 



Cancer

 
 
Fact Sheet

Genitive

  Cancri

Abbreviation

  Cnc

Brightness

  5.95

Location

  9 h (Right Ascension)

  +20° (Declination)

Area

  506 square degrees

Number of Visible Stars

  23

Notable Stars

  Acubens
Asellus Australis
Asellus Borealis
Tarf
Tegmine

Alpha Star

  Acubens

Brightest Star

  DX Cnc (11.8 ly)

Best Seen

  +90° and -60° (Best Latitudes)

  March (Best Month)

 
Description

Overview:
Cancer (pronouced kan' sur) is the 31st most volumous constellation in the night sky with an area of 506 square degrees. The name of Cancer means Crab.

Location:
Cancer is located at Right Ascension 9 h and Declination +20°. It is best seen between latitudes +90° and -60° in the March. Cancer is adjacent to the following constellations: Canis Minor, Gemini, Hydra, Leo, Leo Minor , Lynx.

Stars:
Cancer contains within its borders about 23 visible stars. The principal star of Cancer is Acubens. The brightest of Cancer's stars is DX Cnc (11.8 ly). Cancer also contains within its boundries the following notable stars: Acubens, Asellus Australis, Asellus Borealis, Tarf, Tegmine.

Visual Magnitude:
Cancer is the 37th brightest constellation with a visual magnitude of 5.95.