(Celestial Objects) the brightest star in the sky after the sun, lying in the constellation Canis Major. It is a binary star whose companion,Sirius B, is a very faint white dwarf. Distance: 8.6 light years. Also called:the Dog Star,CaniculaorSothis ...
Distance from Earth 8.6 ly Radial velocity −7.6 km/s Proper motion RA: −546.05 mas/yrDec.: −1223.14 mas/yr Parallax 379.21 ± 1.58 mas Sirius, also known as Alpha Canis Majoris or the Dog Star, is the fifth closest star (counting Proxima Centauri as a separate star) to ...
Sirius appears bright because of both its intrinsic luminosity and its proximity to Earth. At a distance of 2.6 parsecs (the Sirius system is one of Earth's near neighbors. Sirius A is about twice as massive as the Sun and has an absolute visual magnitude of 1.42. It is 25 times more ...
nor does it radiate the most intense light; however, other stars are farther away fromEarth, and thus don’t shine as brightly as Sirius does. One doesn’t even need to use a telescope just to see Sirius.
Sirius, also known as the Dog Star, is thebrightest starin our night-time sky. It's also thesixth closest starto Earth, at a distance of 8.6 light-years. (A light-year is the distance that light travels in a year). The name "Sirius" comes from the ancient Greek word for "scorching...
The distance separating Sirius A from its companion varies between 8.1 and 31.5 Astronomical Units. Sirius appears bright because of both its intrinsic luminosity and its proximity to Earth. At a distance of 8.6 light years (2.6 parsecs), the Sirius system is one of Earth's near neighbors; ...
Its reappearance was observed from the same place in the autumn of 1896 at a distance of 3″.7, with a position angle of 195°. It has a period of 51½ years, and an orbit whose diameter is between those of Uranus and Neptune; its mass being one third that of Sirius and equal ...
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the brightest star in the northern section of sky. Sirius is also known as the "Dog Star". When close to the horizon it twinkles. Of course, the colour variations are only a result of the Earth's unsteady atmosphere. In practice, all stars do twinkle and to a lesser extent the planets...
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