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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]
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 ...
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 ...
The brightest planet Venus, for instance, has a magnitude of around -3 to -4, and the Sun has a magnitude of –26. The famous Halley’s comet had a magnitude of about +2 during its 1986 passby ...
With an apparent magnitude that fluctuates around 1.98, [3] it is the brightest star in the constellation and is readily visible to the naked eye at night. [15] The position of the star lies less than 1° away from the north celestial pole, making it the current northern pole star.
On Wednesday, December 4, stargazers are in for a treat as the two brightest objects in the sky, Venus and the moon, will appear close together, according to Space.com.
A star that is magnitude 1.0 is then 100 times as bright as a star of magnitude 5.0. So many different luminosities exist, though, that astronomers now assign negative magnitudes as well, just to ...
To help compare different orders of magnitude, ... Venus at brightest [1] 200 microlux: Starlight clear moonless night sky excluding airglow [1] 10 −3: 1 millilux: