Iota2 Scorpii
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Scorpius |
| Right ascension | 17h 50m 11.11291s[1] |
| Declination | −40° 05′ 25.5629″[1] |
| Apparent magnitude (V) | +4.82[2] |
| Characteristics | |
| Spectral type | A2 Ib[3] or A6 Ib[4] |
| U−B color index | +0.19[2] |
| B−V color index | +0.25[2] |
| Absolute magnitude (MV) | −4.59[6] |
| Details | |
Myr | |
| Database references | |
| SIMBAD | data |
ι2 Scorpii, Latinised as Iota2 Scorpii, is a singlearcseconds along a position angle of 36°, as of 2000.[10]
In the literature, there are two different
A-type supergiant star with an estimated age of 30[4] million years and a mass 8.8 times that of the Sun.[4] It shines with a luminosity 5,798 times the Sun's from an outer atmosphere that has an effective temperature of 6,372 K.[7] As with other stars of its type, ι2 Scorpii varies slightly in brightness, showing an amplitude of 0.05 in magnitude.[11]
References
- ^ S2CID 18759600.
- ^ Bibcode:1982A&AS...50..261D.
- ^ Bibcode:1978mcts.book.....H.
- ^ S2CID 118629873.
- Bibcode:1967IAUS...30...57E.
- S2CID 119257644.
- ^ S2CID 118665352.
- ^ "iot02 Sco". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2016-09-20.
- S2CID 14878976.
- doi:10.1086/323920.
- Bibcode:1997IBVS.4541....1A.
External links
- Kaler, James B., "Iota-2 Scorpii", Stars, University of Illinois, retrieved 2016-09-20.