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Leo, with Leo Minor above, as depicted in Urania's Mirror, a set of constellation cards published in London c.1825. Leo is also home to a bright variable star, the red giant R Leonis. It is a Mira variable with a minimum magnitude of 10 and normal maximum magnitude of 6; it periodically brightens to magnitude 4.4.
This is the list of notable stars in the constellation Leo, sorted by decreasing brightness. Name B F G. Var HD HIP RA Dec vis. mag. abs. mag. Dist. Sp. class Notes ...
In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
Hevelius decided upon Leo Minor or Leo Junior as a depiction that would align with its beastly neighbours the Lion and the Great Bear. [6] In 1845, English astronomer Francis Baily revised the catalogue of Hevelius's new constellations, and assigned a Greek letter known as Bayer designation to stars brighter than apparent magnitude 4.5. [7]
Lambda Leonis (λ Leonis, abbreviated Lam Leo, λ Leo), formally named Alterf / æ l ˈ t ər f /, [9] [10] is a star in the constellation of Leo.The star is bright enough to be seen with the naked eye, having an apparent visual magnitude of 4.32 [2] Based upon an annual parallax shift of 0.00991 arcseconds, it is located about 329 light-years from the Sun.
Zeta Leonis (ζ Leonis, abbreviated Zeta Leo, ζ Leo), also named Adhafera / æ d ə ˈ f ɪər ə /, [11] is a third-magnitude star in the constellation of Leo, the lion.It forms the second star (after Gamma Leonis) in the blade of the sickle, which is an asterism formed from the head of Leo.
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Regulus is the brightest object in the constellation Leo and one of the brightest stars in the night sky. It has the Bayer designation designated α Leonis, which is Latinized to Alpha Leonis, and abbreviated Alpha Leo or α Leo. Regulus appears singular, but is actually a quadruple star system composed of four stars that are organized into two ...