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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 ...
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:
One magnitude is defined as a ratio of brightness of 2.512 times. So a star of magnitude 5.0 is 2.512 times brighter than one of magnitude 6.0. A star that is magnitude 1.0 is then 100 times as ...
The larger distance derives from the assumption of a very bright absolute magnitude for Canopus. [55] Hipparcos established Canopus as being 310 light-years (95 parsecs) from the Solar System; this is based on its 2007 parallax measurement of 10.43 ± 0.53 mas. [2] At 95 parsecs, the interstellar extinction for Canopus is low at 0.26 magnitudes ...
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.
Science enthusiasts are hoping to get a glimpse of a comet that’s supposed to be the brightest of 2025, but they may be out of luck depending on where they are in the world.