Delta Orionis

34Del Ori

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One of the three stars forming the Belt of Orion, Mintaka holds the Delta designation of the constellation and lies at the western end of that celebrated line. It is a hot blue star of the O spectral class, its colour index of −0.175 reflecting a very high surface temperature. Mintaka lies roughly 692 light-years away and appears at apparent magnitude 2.25; its absolute magnitude of −4.38 places it among the most luminous stars in this group. As a member of the Belt — one of the most recognisable asterisms in the entire sky — Mintaka is a familiar guidepost for observers in both hemispheres.

Propriedades físicas

Classe Espectral O Class O — O-type (Blue)
Índice de cor (B−V) -0,175

Observação

Magnitude Aparente +2.25
Magnitude Absoluta -4,38
Distância 692 ly
Constelação Orion

Posição

Ascensão reta 5h 32,01m
Declinação 0° 17,95′

Frequently Asked Questions

What type of star is Delta Orionis?
Delta Orionis is a Class O — O-type (Blue) star.
How far is Delta Orionis from Earth?
Delta Orionis is approximately 692.5 light-years from Earth.
Can you see Delta Orionis with the naked eye?
With an apparent magnitude of 2.25, Delta Orionis is visible to the naked eye.
What constellation is Delta Orionis in?
Delta Orionis is located in the constellation Orion.