Regulus

Regulus (α Leonis) is a blue-white main-sequence star in the constellation Leo. With an apparent magnitude of 1.35 it is the 22nd-brightest star in the night sky, and it is about 77 light-years from Earth.

Finder chart showing where Regulus is in the constellation Leo
Regulus (circled) in Leo, with the surrounding constellations and bright stars.
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Facts

ConstellationLeo
Designationα Leonis (Alpha Leonis), HR 3982
Apparent magnitude1.35 (22nd brightest)
Spectral typeB7V
Colorblue-white (B−V -0.11)
Distanceabout 77 light-years
Right ascension10 h 8.4 min
Declination+11.97°
Best monthApril (at about 9 pm)

Sources: star positions, magnitudes and colors from the Yale Bright Star Catalogue; constellation boundaries and star names from the IAU; areas and distances from Wikidata; stick figures by M. van der Sluys. How the maps are made.

How to find Regulus

Regulus is in Leo. From 40° N it is highest in the south in April evenings, about 62° above the horizon. From 35° S it reaches about 43° in the north. Nearby bright stars: Zosma (18° away), Alphard (23° away) and Denebola (25° away).

Leo constellation →

Other named stars in Leo

DenebolaZosmaAlgiebaChertanAdhaferaSubraRasalasAlterf

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