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Canis Major
Constellation
Abbreviation CMa
Genitive Canis Majoris
Pronunciation /ˌkns ˈmər/, genitive /ˈkns məˈɒrs/
Symbolism the greater dog
Right ascension 7
Declination −20
Quadrant SQ2
Area 380 sq. deg. (43rd)
Main stars 8
Bayer/Flamsteed
stars
32
Stars with planets 6
Stars brighter than 3.00m 5
Stars within 10.00 pc (32.62 ly) 1
Brightest star Sirius (α CMa) (−1.46m)
Nearest star Sirius (α CMa)
(8.60 ly, 2.64 pc)
Messier objects 1
Meteor showers None
Bordering
constellations
Visible at latitudes between +60° and −90°.
Best visible at 21:00 (9 p.m.) during the month of February.
Canis Major IAU
Map of the constellation

Canis Major is a constellation that is in the southern sky. It means "greater dog" in Latin (also called large dog). There is also the constellation Canis Minor, which means "lesser dog" in Latin. The astronomer named Ptolemy listed Canis Major when he made a list of 48 constellations. It is also one of the 88 modern constellations that were made by the International Astronomical Union.

The star Sirius is in Canis Major. Sirius has a magnitude of -1.44, which means that it is the brightest star in the night sky. It is sometimes called the "dog star." Also, Sirius is only 8.6 light years away from Earth, which is very close.


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