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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.
AD Leonis (Gliese 388) is a red dwarf star. It is located relatively near the Sun , at a distance of 16.2 light-years (5.0 parsecs ), in the constellation Leo . AD Leonis is a main sequence star with a spectral classification of M3.5V. [ 4 ]
R Leonis, 330 light-years from Earth, has a period of 310 days and a diameter of 450 solar diameters. [4] The star Wolf 359 (CN Leonis), one of the nearest stars to Earth at 7.8 light-years away, is in Leo. Wolf 359 is a red dwarf of magnitude 13.5; it periodically brightens by one magnitude or less because it is a flare star. [4]
DP Leonis (abbreviated DP Leo) is a binary star system in the equatorial constellation of Leo. It is a variable star that ranges in apparent visual magnitude from 17.5 down to 19. [ 3 ] The system is located at a distance of approximately 990 light-years from the Sun based on parallax . [ 2 ]
In the equatorial coordinate system, the right ascension coordinates of these borders lie between 9 h 22.4 m and 11 h 06.5 m, while the declination coordinates are between 22.84° and 41.43°. [1] Ranked 64th out of 88 constellations in size, Leo Minor covers an area of 232.0 square degrees, or 0.562 per cent of the sky. [ 16 ]
ω Leonis (Latinised as Omega Leonis, abbreviated to ω Leo or Omega Leo), is a star system located in the zodiac constellation of Leo. It is visible to the naked eye in the absence of light pollution , with an apparent visual magnitude of about 5.4.
83 Leonis, abbreviated 83 Leo, is a binary star system approximately 59 light-years away in the constellation of Leo (the Lion). The primary star of the system is a cool orange subgiant star , while the secondary star is an orange dwarf star.
NGC 2903 is an isolated barred spiral galaxy in the equatorial constellation of Leo, positioned about 1.5° due south of Lambda Leonis. [10] It was discovered by German-born astronomer William Herschel, who cataloged it on November 16, 1784.