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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.
In Greek and Roman mythology and religion, Sirius (/ ˈ s ɪ r ɪ ə s /, SEE-ree-əss; Ancient Greek: Σείριος, romanized: Seírios, lit. 'scorching' pronounced) is the god and personification of the star Sirius, also known as the Dog Star, the brightest star in the night sky and the most prominent star in the constellation of Canis Major (or the Greater Dog). [1]
• Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.] See also [ edit ]
It is often colloquially called the "Dog Star" as the brightest star of Canis Major, the "Great Dog" constellation. Canis Major was classically depicted as Orion's dog. The Ancient Greeks thought that Sirius's emanations could affect dogs adversely, making them behave abnormally during the "dog days", the hottest days of the summer. The Romans ...
Theta Canis Majoris (θ Canis Majoris) is a solitary, [8] orange-hued star near the northern edge [9] of the constellation Canis Major, forming the nose of the "dog". [10] The star is visible to the naked eye with an apparent visual magnitude of 4.08. [2] Based upon an annual parallax shift of 12.07 mas as seen from Earth, [1] it is located ...
Pi Canis Majoris (π Canis Majoris; Latin for 'Greater Dog') is a binary star [9] system in the southern constellation of Canis Major. It is visible to the naked eye, having an apparent visual magnitude of +4.69. [2] Based upon an annual parallax shift of 33.80 mas as seen from Earth, [1] this system is located 96.5 light years from the Sun.
In 1967, Graham Hill announced his discovery that the star, then known as HD 53974, is a variable star. [11] It was given its variable star designation , FN Canis Majoris, in 1970. [ 12 ] In the past it was classified as a Beta Cephei type variable star [ 11 ] with an apparent magnitude that was measured varying between +5.38 and +5.42 over a ...
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