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Brightest planet −2.20 [6]: 39 −2.94 [6]: 39 Jupiter: Planet −1.46 Sirius: Binary star system: Brightest night star −0.74 Canopus: Star −0.29 [7] Alpha Centauri AB Binary star system Part of a triple star system with Proxima Centauri: −0.05 Arcturus: Star Brightest Population II star 0.03 −0.02 Vega: Star 0.08 0.03 [8] Capella ...
The Sun is the brightest star as viewed from Earth, at −26.78 mag. The second brightest is Sirius at −1.46 mag. For comparison, the brightest non-stellar objects in the Solar System have maximum brightnesses of: the Moon −12.7 mag [1] Venus −4.92 mag; Jupiter −2.94 mag; Mars −2.94 mag; Mercury −2.48 mag; Saturn −0.55 mag [2]
A more complex definition of absolute magnitude is used for planets and small Solar System bodies, based on its brightness at one astronomical unit from the observer and the Sun. The Sun has an apparent magnitude of −27 and Sirius, the brightest visible star in the night sky, −1.46. Venus at its brightest is -5.
For instance, the sun has –26 magnitude compared with the full moon whose magnitude is around –13 magnitude to the naked eye. The brightest planet in the sky – Venus – is estimated to have ...
2nd brightest star in night sky [46] −0.55: planet Saturn: seen from Earth maximum brightness near opposition and perihelion when the rings are angled toward Earth [42] −0.3: Halley's comet: seen from Earth Expected apparent magnitude at 2061 passage −0.27: star system Alpha Centauri AB: seen from Earth Combined magnitude (3rd brightest ...
If this object were 10 parsecs away from Earth it would appear nearly as bright in the sky as the Sun (apparent magnitude −26.744). This quasar's luminosity is, therefore, about 2 trillion (10 12) times that of the Sun, or about 100 times that of the total light of average large galaxies like our Milky Way. (Note that quasars often vary ...
Prominent stars in the neighborhood of the Sun (center) This list of nearest bright stars is a table of stars found within 15 parsecs (48.9 light-years) of the nearest star, the Sun, that have an absolute magnitude of +8.5 or brighter, which is approximately comparable to a listing of stars more luminous than a red dwarf.
Astronomers have discovered what may be the brightest object in the universe, a quasar with a black hole at its heart growing so fast that it swallows the equivalent of a sun a day. The black hole ...