Zeta Crucis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Crux |
| Right ascension | 12h 18m 26.24772s[1] |
| Declination | –64° 00′ 11.0528″[1] |
| Apparent magnitude (V) | 4.04[2] |
| Characteristics | |
| Spectral type | B2.5V[3] |
| U−B color index | –0.68[2] |
| B−V color index | –0.17[2] |
| Absolute magnitude (MV) | −1.13[5] |
| Details | |
Myr | |
| Database references | |
| SIMBAD | data |
Zeta Crucis, Latinized from ζ Crucis, is a binary star system in the southern constellation of Crux. It is visible to the naked eye with an apparent magnitude of 4.06m. ζ Crucis is located at about 360 light-years from the Sun. It is a member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association.[10]
This is a double-lined
spectroscopic binary star system.[11] The spectrum matches a B-type main-sequence star with a stellar classification of B2.5 V. There is a faint visual companion with an apparent magnitude of 12.49.[12]
References
- ^ S2CID 18759600. Vizier catalog entry
- ^ Bibcode:1966CoLPL...4...99J.
- doi:10.1086/150069.
- Bibcode:1967IAUS...30...57E.
- ^ S2CID 119257644.
- ^ S2CID 118629873.
- .
- Bibcode:1970CoAsi.239....1B.
- ^ "zet Cru". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-09-10.
- S2CID 119278056, 133.
- S2CID 119120749.
- Bibcode:1983A&AS...51..143G.
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