Chi Scorpii
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Scorpius |
| Right ascension | 16h 13m 50.90563s [1] |
| Declination | −11° 50′ 15.8891″ [1] |
| Apparent magnitude (V) | 5.25 [2] |
| Characteristics | |
| Spectral type | K3III [2] |
| B−V color index | +1.40 [2] |
| Astrometry | |
| Radial velocity (Rv) | -23.61[3] km/s |
| Proper motion (μ) | RA: -4.82[1] mas/yr Dec.: -10.20[1] mas/yr |
| Parallax (π) | 8.62 ± 0.35 mas[1] |
| Distance | 380 ± 20 ly (116 ± 5 pc) |
| Absolute magnitude (MV) | -0.07 [4] |
| Other designations | |
| Database references | |
| SIMBAD | data |
Chi Scorpii (χ Sco, χ Scorpii) is a star in the constellation Scorpius.
Chi Scorpii is an orange K-type giant with an apparent magnitude of +5.25.[2] It is approximately 378 light years from Earth.[1]
References
- ^ a b c d e f van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- ^ a b c d e "Chi Scorpii". SIMBAD Astronomical Database. Retrieved 2015-10-17.
- ^ Nidever, David L.; et al. (August 2002), "Radial Velocities for 889 Late-Type Stars", The Astrophysical Journal Supplement Series, 141 (2): 503–522, arXiv:astro-ph/0112477, Bibcode:2002ApJS..141..503N, doi:10.1086/340570
- ^ Absolute magnitude calculated as , where is the star's absolute magnitude, is the star's apparent magnitude, and is the star's measured parallax in arcseconds.
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