Регул

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.

Физические свойства

Спектральный класс B Class B — B-type (Blue-White)
Показатель цвета (B−V) -0,087

Наблюдение

Видимая звёздная величина +1.36
Абсолютная звёздная величина -0,57
Расстояние 79.3 ly
Созвездие Leo

Положение

Прямое восхождение 10h 8,37m
Склонение 11° 58,03′

Frequently Asked Questions

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