Regulus

32Alp Leo

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Regulus is a hot blue-white B-type star whose negative B–V index of −0.087 marks a high surface temperature. Catalogued as Alpha Leonis, it is the brightest star of the constellation Leo and lies almost exactly on the ecliptic, so the Moon and planets regularly pass close by. It appears at magnitude 1.36 from a distance of 79 light-years, and its absolute magnitude of −0.57 indicates an intrinsic luminosity above the Sun's. A near-equatorial declination of +11° makes Regulus visible from essentially every inhabited latitude, anchoring the sickle-shaped figure of Leo in the spring sky.

Physikalische Eigenschaften

Spektralklasse B Class B — B-type (Blue-White)
Farbindex (B−V) -0,087

Beobachtung

Scheinbare Helligkeit +1.36
Absolute Helligkeit -0,57
Entfernung 79.3 ly
Sternbild Leo

Position

Rektaszension 10h 8,37m
Deklination 11° 58,03′

Frequently Asked Questions

What type of star is Regulus?
Regulus is a Class B — B-type (Blue-White) star.
How far is Regulus from Earth?
Regulus is approximately 79.3 light-years from Earth.
Can you see Regulus with the naked eye?
With an apparent magnitude of 1.36, Regulus is visible to the naked eye.
What constellation is Regulus in?
Regulus is located in the constellation Leo.