Kappa1 Sculptoris
| Observation data ICRS )
| ||
|---|---|---|
| Constellation | Sculptor | |
| Right ascension | 00h 09m 21.06696s[1] | |
| Declination | −27° 59′ 16.5322″[1] | |
| Apparent magnitude (V) | +5.51 (6.23 + 6.29)[2] | |
| Characteristics | ||
| Spectral type | F2V[3] (F4 III + F3 III)[2] | |
| U−B color index | +0.06[4] | |
| B−V color index | +0.42[4] | |
| Absolute magnitude (MV) | 2.05[6] | |
Argument of periastron (ω)(secondary) | 256.86° | |
| Details | ||
| κ1 Scl A | ||
Gyr | ||
| Database references | ||
| SIMBAD | data | |
Kappa1 Sculptoris is a
light years from the Sun
.
The pair orbit each other with an estimated
spectrum is classified as F2V.[3] The mass ratio is 0.782, meaning the secondary is only 78.2% as massive as the primary.[12] An 18th magnitude companion star lies 73.4 arc seconds distant along a position angle of 243°, as of 1998.[13]
References
- ^ S2CID 18759600.
- ^ S2CID 14878976.
- ^ Bibcode:1982mcts.book.....H.
- ^ Bibcode:1975MNSSA..34....7H.
- S2CID 59451347, A61.
- ^ S2CID 53666672.
- ^ a b Hartkopf, W. I.; et al., Sixth Catalog of Orbits of Visual Binary Stars, United States Naval Observatory, archived from the original on 2011-05-17, retrieved 2017-06-02
- ^ S2CID 33401607.
- S2CID 118665352.
- S2CID 56118016.
- Centre de Données astronomiques de Strasbourg, retrieved 2017-06-01.
- S2CID 237635330.
- doi:10.1086/323920, retrieved 2015-07-22