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At magnitude 1.5, it is the second-brightest star in Canis Major and the 23rd-brightest star in the sky. It is a blue-white supergiant of spectral type B2Iab, around 404 light-years from Earth. [39] This star is one of the brightest known extreme ultraviolet sources in the sky. [40] It is a binary star; the secondary is of magnitude 7.4.
NGC 2204 is an open cluster of stars in the Canis Major constellation. It was discovered by the German-English astronomer William Herschel on 6 February 1785. [5] The cluster has an integrated visual magnitude of 8.6 and spans a diameter of 10.0′. Resolving the individual member stars is a challenge with a 10 to 12-inch amateur telescope. [3]
Messier 41 (also known as M41 or NGC 2287) is an open cluster in the constellation Canis Major.It is sometimes referred to as the Little Beehive Cluster. [4] It was discovered by Giovanni Batista Hodierna before 1654 and was perhaps known to Aristotle about 325 BC. [5]
This is the list of notable stars in the constellation Canis Major, ... Canicula, the Dog Star; brightest star, 5th ... member of the NGC 2362 star cluster; ...
Tau Canis Majoris (τ CMa, τ Canis Majoris, 30 CMa) is a multiple star system in the constellation Canis Major. It is approximately 5,000 light years distant from Earth and is the brightest member of the open cluster NGC 2362 .
The brightest member star system is Tau Canis Majoris, and therefore it is sometimes called the Tau Canis Majoris Cluster. The cluster is located at a distance of approximately 1.48 kpc from the Sun, [1] and appears associated with the giant nebula Sh2-310 that lies at the same distance, [7] about one degree to the east.
Map showing the location of NGC 2360. NGC 2360 (also known as Caroline's Cluster [3] or Caldwell 58) is an open cluster in the constellation Canis Major.It was discovered on 26 February 1783 [4] by Caroline Herschel, who described it as a "beautiful cluster of pretty compressed stars near 1/2 degree in diameter". [5]
NGC 2374 is an open cluster of stars in the Canis Major constellation. [3] It was discovered on January 31, 1785 by the German-British astronomer William Herschel. [5] This cluster is relatively rich in stars but is scattered across an angular diameter of 19.0′.