Cancer

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

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Cancer (The Crab)

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

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Messier Objects in Cancer

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

Other objects in Cancer

Select CatalogNo of Objects
Barnard (B)0x object
Caldwell (C)1x object
Collinder (Cr)2x objects
New General Catalogue (NGC)117x objects
Index Catalogue (IC)220x objects
Sharpless (Sh2)1x object

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.

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Named Stars

  • Acubens (Alpha Cnc)
  • Altarf (Beta Cnc)
  • Asellus Borealis (Gamma Cnc)
  • Asellus Australis (Delta Cnc)
  • Tegmen (Zeta 1 Cnc)
  • more list of stars in Cancer

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Planetarium / Constellation Map

Live constellation visible
from the UK :- Planetarium (Cancer)
Best Seen in:
March (map)
Seen between:
January and May

IAU Sky Chart: Cancer

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Constellations – Visible from the UK

AndromedaAquariusAquilaAriesAuriga
BoötesCamelopardalisCancerCanes VenaticiCanis Major
Canis MinorCapricornusCassiopeiaCepheusCetus
Coma BerenicesCorona BorealisCorvusCraterCygnus
DelphinusDracoEquuleusGeminiHercules
HydraLacertaLeoLeo MinorLepus
LibraLynxLyraMonocerosOphiuchus
OrionPegasusPerseusPiscesSagitta
ScutumSerpens CaputSerpens CaudaSextansTaurus
TriangulumUrsa MajorUrsa MinorVirgoVulpecula
(50 constellations above are visible from the United Kingdom.)

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Parts visible from the UK

AntliaColumbaEridanusFornaxMicroscopium
Piscis AustrinusPuppisPyxisSagittariusScorpius
Sculptor
(11 constellations above are partially visible from the United Kingdom.)

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Constellations: Southern Celestial Hemisphere
…..never seen from the UK

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Back to Constellation Names

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