Bellatrix

24Gam Ori

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Gamma Orionis, called Bellatrix, marks one shoulder of the constellation Orion and is a blue-white B-type star with a hot, negative B–V index of −0.224. It shines at apparent magnitude 1.64 from a distance of some 252 light-years, and its absolute magnitude of −2.8 indicates an intrinsic luminosity well beyond the Sun's. Positioned near the celestial equator at declination +6°, Bellatrix is visible from nearly everywhere on Earth. Together with Betelgeuse it forms the upper pair of Orion's rectangular figure, its cooler blue-white light contrasting with the red shoulder opposite.

Propriétés physiques

Classe Spectrale B Class B — B-type (Blue-White)
Indice de couleur (B−V) -0,224

Observation

Magnitude Apparente +1.64
Magnitude Absolue -2,80
Distance 252 ly
Constellation Orion

Position

Ascension droite 5h 25,13m
Déclinaison 6° 20,98′

Frequently Asked Questions

What type of star is Bellatrix?
Bellatrix is a Class B — B-type (Blue-White) star.
How far is Bellatrix from Earth?
Bellatrix is approximately 252.4 light-years from Earth.
Can you see Bellatrix with the naked eye?
With an apparent magnitude of 1.64, Bellatrix is visible to the naked eye.
What constellation is Bellatrix in?
Bellatrix is located in the constellation Orion.