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Zodiac: Sagittarius
Nov 23 - Dec 21
Read more about Sagittarius.
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HR 5171

HR 5171 is a yellow hypergiant star (G8Ia+ C) in the constellation of Centaur.
HR 5171 is a triple star system in the constellation of Centaur. It's distance to Earth is rather uncertain, but it is estimated at 5000 or 12000 light years. With a diameter between 1100 and 1600 times that of the Sun, it is one of the largest known stars, containing either a red supergiant star or a yellow hypergiant star.
Right ascension
13h 47m 10.88s (206.79532°)
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.
6.91 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.
11,64811,648 ly
Spectral type
G8Ia+ C
Color index
not in database
Every star belongs to a constellation, and 12 of those constellations are part of the zodiac.
Centaurus (Centaur)
Artist impression of HR 5171.
Image credit: ESO
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This star is reserved and cannot be named.
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