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NGC 2359 (also known as Thor's Helmet) is an emission nebula [3] in the constellation Canis Major. The nebula is approximately 3,670 parsecs (11.96 thousand light years) away and 30 light-years in size. The central star is the Wolf-Rayet star WR7, an extremely hot star thought to be in a brief pre-supernova stage of evolution.
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]
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.
Beta Canis Majoris is located near the far end of the Local Bubble, [22] a cavity in the local interstellar medium through which the Sun is traveling. It is located within the Mirzam Tunnel , a region of less dense concentration between the stars and HII regions surrounding the Ori OB1 and Vel OB2 associations.
FN Canis Majoris is a binary star [4] system in the southern constellation Canis Major, near the northern constellation border with Monoceros. It is dimly visible to the naked eye with a combined apparent visual magnitude of 5.41. [ 3 ]
By 5 million YBP the larger Canis lepophagus, ancestor of wolves and coyotes, appeared in the same region. [1]: p58 Around 5 million years ago, some of the Old World Eucyon evolved into the first members of Canis, [14] and the position of the canids would change to become a dominant predator across the Palearctic.
Mu Canis Majoris (μ Canis Majoris) is a binary star [2] system in the southern constellation of Canis Major. The pair can be located a little to the southwest of the point midway between Gamma and Theta Canis Majoris , [ 11 ] and the components can be split with a small telescope. [ 12 ]
This is the list of notable stars in the constellation Canis Major, sorted by decreasing brightness. List. Name B F Var HD ... −28° 58′ 19.5″ 1.50: −4.10 ...