スピカ

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.

物理的特性

スペクトル型 B Class B — B-type (Blue-White)
色指数 (B−V) -0.235

観測

見かけの等級 +0.98
絶対等級 -3.44
距離 250 ly
星座 Virgo

位置

赤経 13h 25.19m
赤緯 -11° 9.68′

Frequently Asked Questions

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