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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]
The first list shows a few of the known stars with an estimated luminosity of 1 million L ☉ or greater, including the stars in open cluster, OB association and H II region. The majority of stars thought to be more than 1 million L ☉ are shown, but the list is incomplete. The second list gives some notable stars for the purpose of comparison.
Part of a Triple star system with TW Piscis Austrini and Fomalhaut C: 1.25 1.21 Deneb: Star 1.25 1.23 Mimosa: Binary star system 1.40 Regulus: Quadruple star system 1.50 Epsilon Canis Majoris: Binary star system 1.58 Castor: Sextenary star system Brightest sextuple star system 1.62 [12] Lambda Scorpii: Triple star system 1.64 1.59 Bellatrix ...
Second brightest star in the night sky. Gacrux (γ Crucis) 73 [97] L/T eff: Twenty-sixth brightest star in the night sky. Polaris (α Ursae Minoris) 46.27 ± 0.42 [98] AD The current star in the North Pole. It is a Classical Cepheid variable, and the brightest example of its class. Aldebaran (α Tauri) 45.1 ± 0.1 [99] AD Fourteenth brightest ...
Some of the brightest stars in the night sky, such as Rigel and Antares, are in the list. While supergiants are typically defined as stars with luminosity classes Ia, Iab or Ib, other definitions exist, such as those based on stellar evolution. [1] Therefore, stars with other luminosity classes can sometimes be considered supergiants.
Also, NASA notes that unlike stars that twinkle and sparkle when it’s dark out, planets, like Mars, do not flicker. Instead, they appear as steady beams and glow brighter. Instead, they appear ...
The following is a list of particularly notable actual or hypothetical stars that have their own articles in Wikipedia, but are not included in the lists above. BPM 37093 — a diamond star Cygnus X-1 — X-ray source
Working out exactly which stars were or will be the brightest at any given point in the past or future is difficult since it requires precise 3D proper motions of large numbers of stars and precise distances. [1] This information only started to become available with the 1997 Hipparcos satellite data release. [1]