Iota Sagittarii
|
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 | |
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
This article is issued from Wikipedia - version of the 2/28/2013. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.