(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 ...
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...
Sirius’ brightness can be attributed to its luminosity and proximity at a distance of 8.6 light-years. There are few stars that are closer to Earth, but none of them can match Sirius’ magnitude. Based on calculations from theEuropean Space Agency’s Hipparcos satellite, Sirius will continue ...
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 ...
Distance fromearth:8.611light years Color:Blue-white(variable) Surface temperature:10,000 degrees Celsius (or 18,000 degrees Fahrenheit Luminosity:–25.4 (25x our sun) Magnitude:-1.46( Brightest star in the sky) TheAstronomyof the Sirius Star System ...
For anEarth-likeworld that has liquidwateron it to exist around Sirius, it would need to be around 4.6 AUs away, equivalent to the distance ofJupiterfrom the Sun, with an orbital period of 6.8 years. However, due to the close orbit of Sirius B, it would be difficult for a planet to...
Investigations up to the present time show a parallax of 0″.39, indicating a distance of 8.3 light years, nearly twice that of alpha Centauri. Some are of the opinion that the apparent magnitude of Sirius is partly due to the whiteness of its tint and its greater intrinsic brilliancy; ...
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; for Northern-hemisphere observers between 30 degrees and 73 degrees of latitude (including almost all ...
Sirius A Data Table Name Sirius Bayer alpha (α) CMa Flamsteed 9 CMa Constellation Canis Major RA (J2000) 06h 45m 09s DEC (J2000) -16d 42m 58s Distance (light-years) 8.60 Apparent Mag. -1.46 Absolute Mag. +1.42 Spectral Type A1V Radius (Sol) 1.71 Surface Temp (K). 9,940 Lumin...
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