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This 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.
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 Proxima Centauri: −0.05 Arcturus: Star Brightest Population II star 0.03 −0.02 Vega: Star 0.08 0.03 [8] Capella: Quadruple star system: Brightest quadruple star system 0.13 0.05 [9] Rigel: Quadruple star system 0.13 [10] Large Magellanic Cloud: Galaxy: Brightest galaxy 0.23 [6]: 29 −2.48 [6]: 29 Mercury ...
Maximum brightness; one of largest known stars by radius +8.94: asteroid 10 Hygiea: seen from Earth maximum brightness [62] +9.50: Faintest objects visible using common 7×50 binoculars under typical conditions [63] +10: Apollo 8 CSM in orbit around the Moon: seen from Earth calculated (Liemohn) [64] +10 star system T CrB(average) seen from Earth
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.
A number following a comma is a scale between 1 and 9 based on the ratio of ZrO and TiO. A number following a slash is a more-recent but less-common scheme designed to represent the ratio of carbon to oxygen on a scale of 1 to 10, where a 0 would be an MS star. Intensities of zirconium and titanium may be indicated explicitly. Also occasionally ...
Hence many stars brighter than V=6.50 are not in the YBSC (and hundreds of stars in the YBSC are fainter than V=6.50). Dorrit Hoffleit with Michael Saladyga and Peter Wlasuk published in 1983 a Supplement with an additional 2603 stars for which a V magnitude of brighter than 7.10 had been measured at that time.
Altho' the Distinction of Stars into six Degrees of Magnitude is commonly received by Astronomers; yet we are not to judge, that every particular Star is exactly to be ranked according to a certain Bigness, which is one of the Six; but rather in reality there are almost as many Orders of Stars, as there are Stars, few of them being exactly of ...