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The brightest star in the night sky changes more often than you might think. This is our guide to which star is brightest and when.
What is that bright star in the sky tonight? Our Bright Stars Calculator tells you all about the visible stars in the night sky—tonight or a date in the future—all customized to the location that you select! We cover every day from 1970 through 2036.
Nov 24, 2022 · The Moon and the planets Jupiter, Venus and Mars — and occasionally Mercury — are the only natural objects that are bright enough to outshine it when they're above the horizon.
Jul 15, 2014 · The brightest star in the sky is Sirius, also known as the “Dog Star” or, more officially, Alpha Canis Majoris, for its position in the constellation Canis Major. Sirius is a binary star dominated by a luminous main sequence star, Sirius A, with an apparent magnitude of -1.46.
Sirius, the brightest star in the Earth’s sky, lies only 8.60 light years away and is one of the nearest stars to the Sun. With twice the Sun’s mass and a radius 1.711 times solar, it is 25.4 times more luminous than the Sun. Nicknamed the Dog Star, it lies in the constellation Canis Major.
NameBayer DesignationApparent MagnitudeDistance (light Years)Alpha Canis Majoris-1.468.60Alpha Carinae-0.733103. Rigil Kentaurus-0.294.37Alpha Boötis-0.0536.7 ± 0.2This is a list of stars arranged by their apparent magnitude – their brightness as observed from Earth. It includes all stars brighter than magnitude +2.50 in visible light, measured using a V -band filter in the UBV photometric system.
Quick Answer: The brightest star in the night sky is Sirius [A&B] at magnitude -1.46. It is also called Alpha Canis Majoris, and is commonly known as the Dog Star. It resides in the constellation of Canis Major. Sirius is 8.6 light-years away from us, close enough to be the brightest star in our night skies.
