Alpha Virginis

67Alp Vir

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Spica is a hot blue-white B-type star, its negative B–V index of −0.235 betraying a high surface temperature. Catalogued as Alpha Virginis, it is by far the brightest star of the constellation Virgo, shining at apparent magnitude 0.98 from a distance of about 250 light-years. An absolute magnitude of −3.44 reflects an intrinsic luminosity well beyond the Sun's, which sustains its brightness across that distance. Positioned just south of the celestial equator at declination −11°, Spica is visible worldwide and serves as a convenient waypoint for locating Virgo along the spring ecliptic.

Đặc tính vật lý

Phân Loại Quang Phổ B Class B — B-type (Blue-White)
Chỉ số màu (B−V) -0,235

Quan sát

Cấp Sao Biểu Kiến +0.98
Cấp Sao Tuyệt Đối -3,44
Khoảng Cách 250 ly
Chòm Sao Virgo

Vị trí

Xích kinh 13h 25,19m
Xích vĩ -11° 9,68′

Frequently Asked Questions

What type of star is Alpha Virginis?
Alpha Virginis is a Class B — B-type (Blue-White) star.
How far is Alpha Virginis from Earth?
Alpha Virginis is approximately 249.7 light-years from Earth.
Can you see Alpha Virginis with the naked eye?
With an apparent magnitude of 0.98, Alpha Virginis is visible to the naked eye.
What constellation is Alpha Virginis in?
Alpha Virginis is located in the constellation Virgo.