Sigma Scorpii

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Sigma Scorpii
Observation data
Epoch {{{epoch}}}      Equinox
Constellation Scorpius
Right ascension {{{ra1}}}
Declination {{{dec1}}}
Apparent magnitude (V) {{{appmag_v1}}}
Right ascension {{{ra2}}}
Declination {{{dec2}}}
Apparent magnitude (V) {{{appmag_v2}}}
Evolutionary stage blue main sequence star
Spectral type B1 III[1]
Distance696[2] ly
Radius12.7[3] R
Diameter12.7[3] D
Luminosity (bolometric)95 500 L
Temperature27 700[4] K
Other designations
Sigma Scorpii, Alniyat

Sigma Scorpii, also known as Alniyat, is a star located in the constellation Scorpius. It is located 696[2] light years away from the Earth. Sigma Scorpii has a diameter of 12.7[3] D, making it around the size of the orbit of no planet. Sigma Scorpii has a stellar class of B1 III[1] and a temperature of 27 700[4] degrees Kelvin; it is a blue main sequence star that is currently burning hydrogen and helium within its core. Sigma Scorpii is around 95 500 times brighter than the Sun. Sigma Scorpii is a binary system of four stars,[5] all of which are similar to each other and reside in an arm of the Milky Way called the Gould Belt.[6]


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