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Canis Major is a constellation in the southern celestial hemisphere. In the second century, it was included in Ptolemy 's 48 constellations, and is counted among the 88 modern constellations . Its name is Latin for "greater dog" in contrast to Canis Minor , the "lesser dog"; both figures are commonly represented as following the constellation ...
Beta Canis Majoris (β Canis Majoris, abbreviated Beta CMa, β CMa), also named Mirzam / ˈ m ɜːr z əm /, [13] is a star in the southern constellation of Canis Major, the "Great Dog", located at a distance of about 500 light-years (150 parsecs) from the Sun. [1] In the modern constellation it lies at the position of the dog's front leg.
10 Canis Majoris is 8.2 [8] million years old with 19.2 [8] times the mass of the Sun and 10 [9] times the Sun's radius. It is radiating around 44,000 [ 10 ] times the luminosity of the Sun from its photosphere at an effective temperature of 25,000 K. [ 10 ] There is a magnitude 12.58 visual companion at an angular separation of 37.3 ″ along ...
Xi 2 Canis Majoris, which is Latinized from ξ 2 Canis Majoris, is an astrometric binary [4] star system in the southern constellation of Canis Major. With an apparent visual magnitude of +4.54, [2] it is visible to the naked eye. Based upon an annual parallax shift of 8.35 mas, [1] the system is approximately 390 light years distant from Earth.
Canis Major: Right ascension: 07 h 12 m 12.21483 s [2] ... 26 Canis Majoris is a variable star in the southern constellation of Canis Major, [10] located around 1,010 ...
Xi 1 Canis Majoris, Latinized from ξ 1 Canis Majoris, is a Beta Cephei variable star in the constellation Canis Major. It is approximately 1,400 light years from Earth. ξ 1 Canis Majoris is a blue-white B-type star. It has generally been assigned a luminosity class of III or IV , for example B1III [3] or B0.5IV. [6]
Z Canis Majoris (Z CMa) is a B-type star in the constellation of Canis Major. [5] It has an average apparent visual magnitude of approximately 10, though has brightened by 1-2 magnitudes in irregular outbursts in 1987, 2000, 2004 and 2008. [9]
Eta Canis Majoris (η Canis Majoris, abbreviated Eta CMa, η CMa), also named Aludra / ə ˈ l uː d r ə, ə ˈ lj uː d r ə /, [10] is a star in the constellation of Canis Major. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.