Iota Sagittarii

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Iota Sagittarii
Diagram showing star positions and boundaries of the Sagittarius constellation and its surroundings
Cercle rouge 100%.svg

Location of ι Sagittarii (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Sagittarius
Right ascension 19h 55m 15.7s
Declination −41° 52' 06"
Apparent magnitude (V) +4.12
Absolute magnitude (V) +0.30
Distance 189 ± 9 ly
(58 ± 3 pc)
Spectral type K0III
Other designations
ι Sagittarii, ι Sgr, Iota Sgr, CPD-42 8944, FK5 1520, GC 27557, HD 188114, HIP 98032, HR 7581, PPM 325624, SAO 229927,

Iota Sagittarii (Iota Sgr, ι Sagittarii, ι Sgr) is a star in the constellation Sagittarius.

Iota Sagittarii is a spectral type K0 giant and has an apparent magnitude of +4.12. It is 189 light years from Earth. It is moving through the Galaxy at a speed of 39.3 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,500 and 50,100 light years from the center of the Galaxy.[1]

It came closest to the Sun 1.3 million years ago when it had brightened to magnitude 2.21 from a distance of 75 light years.[1]

References[edit]