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Zodiac: Sagittarius
Nov 23 - Dec 21
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Antares (α Scorpii)

Antares (α Scorpii) is a red supergiant star (M1Ib + B2.5V) in the constellation of Scorpion.
Antares is on average the fifteenth-brightest star in the night sky, and the brightest object in the constellation of Scorpius. Distinctly reddish when viewed with the naked eye, Antares is a slow irregular variable star that ranges in brightness from apparent magnitude +0.6 to +1.6. Often referred to as "the heart of the scorpion", Antares is flanked by σ Scorpii and Paikauhale (τ Scorpii) near the center of the constellation.
 
Classified as spectral type M1.5Iab-Ib, Antares is a red supergiant, a large evolved massive star and one of the largest stars visible to the naked eye. Its exact size remains uncertain, but if placed at the center of the Solar System, it would reach to somewhere between the orbits of Mars and Jupiter. Its mass is calculated to be around 12 times that of the Sun.
Declination
-26.4319°
Right ascension
16h 29m 24.47s (247.35194°)
The magnitude (brightness) is measured on a logarithmic scale. Small numbers mean bright stars: A star with a brightness of 1 mag is 100 times brighter that an star with 6 mag.
Magnitude
1.09 mag
The distance is measured in light years (LY). A light year is the distance, that light travels within one year. 1 LJ is equal to about 5,878,630,000,000 miles.
Distance
604604 ly
Tycho-Identifier
6803:2158:1
HIP-Identifier
80763
Spectral type
M1Ib + B2.5V
Color index
1.87
Every star belongs to a constellation, and 12 of those constellations are part of the zodiac.
Constellation
Scorpius (Scorpion)
Artist impression of Antares, a red supergiant star, with a mass of around 12 times that of the Sun.
Image credit: ESO/M. Kornmesser
Disclaimer
While we take great care in compiling the data of all astronomical objects in our database, errors can never be ruled out completely. Therefore, no warranty is taken over for the correctness of the data, the descriptions, or the associated images. Staracle cannot be held liable for any damage, direct or indirect, that may result from incorrect data.
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