HD 31093
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Caelum |
| Right ascension | 04h 51m 28.21644s[1] |
| Declination | −34° 54′ 22.6341″[1] |
| Apparent magnitude (V) | 5.85[2] |
| Characteristics | |
| Spectral type | A1V + A4V[3] |
| U−B color index | +0.09[2] |
| B−V color index | +0.08[2] |
| Astrometry | |
| Radial velocity (Rv) | +23[4] km/s |
| Proper motion (μ) | RA: 24.90±0.33[1] mas/yr Dec.: −22.68±0.48[1] mas/yr |
| Parallax (π) | 12.17 ± 0.41 mas[1] |
| Distance | 268 ± 9 ly (82 ± 3 pc) |
| Details | |
| HD 31093 A | |
| Mass | 2.7[3] M☉ |
| Rotational velocity (v sin i) | 196.8±1.9[5] km/s |
| HD 31093 B | |
| Mass | 2.3[3] M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 31093 (also known as HIP 22573)[7] is a binary star system in the constellation Caelum. HD 31093 is roughly 268 light years distant.[3]
References
- ^ a b c d e 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. S2CID 18759600. Vizier catalog entry
- ^ a b c Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data, SIMBAD, Bibcode:1986EgUBV........0M
- ^ a b c d Docobo, J. A.; Andrade, M. (2013). "Dynamical and physical properties of 22 binaries discovered by W. S. Finsen". Monthly Notices of the Royal Astronomical Society. 428 (1): 321–339. Bibcode:2013MNRAS.428..321D. doi:10.1093/mnras/sts045.
- ^ Kharchenko, N. V.; Scholz, R.-D.; Piskunov, A. E.; Röser, S.; Schilbach, E. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ˜55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776. S2CID 119323941.
- ^ Díaz, C. G.; et al. (July 2011), "Accurate stellar rotational velocities using the Fourier transform of the cross correlation maximum", Astronomy & Astrophysics, 531: A143, arXiv:1012.4858, Bibcode:2011A&A...531A.143D, doi:10.1051/0004-6361/201016386, S2CID 119286673
- ^ "HD 31093 -- Double or multiple star". SIMBAD Astronomical Database. Centre de données astronomiques de Strasbourg. Retrieved 2014-12-26.
- ^ "HD 31093, a white main-sequence star in Caelum". www.astrostudio.org. Archived from the original on 2015-04-10. Retrieved 2015-04-05.
External links
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