HD 32188
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 03m 18.63730s[1] |
| Declination | +41° 26′ 29.9337″[1] |
| Apparent magnitude (V) | 6.08[2] |
| Characteristics | |
| Spectral type | A2IIIshe[3] |
| U−B color index | +0.22[2] |
| B−V color index | +0.21[2] |
| Variable type | γ Cas[3] |
| Astrometry | |
| Radial velocity (Rv) | −0.7[4] km/s |
| Proper motion (μ) | RA: −0.44[1] mas/yr Dec.: −1.89[1] mas/yr |
| Parallax (π) | 1.64 ± 0.38[1] mas |
| Distance | approx. 2,000 ly (approx. 600 pc) |
| Details | |
| Luminosity | 1,037[5] L☉ |
| Temperature | 6,867[5] K |
| Rotational velocity (v sin i) | 23[6] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 32188 is suspected variable star in the northern constellation of Auriga. It is a shell star, which means it has a peculiar spectrum indicating there is a circumstellar disk of gas around the star's equator. While the spectrum matches a luminosity class of III, the derived class is type I; suggesting this is actually a supergiant star.[3]
References
- 1 2 3 4 5 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:10.1051/0004-6361:20078357Vizier catalog entry
- 1 2 3 Guetter, H. H.; Hewitt, A. V. (June 1984), "Photoelectric UBV photometry for 317 PZT and VZT stars", Astronomical Society of the Pacific, Publications 96: 441−443, Bibcode:1984PASP...96..441G, doi:10.1086/131362
- 1 2 3 Hauck, B.; Jaschek, C. (February 2000), "A-shell stars in the Geneva system", Astronomy and Astrophysics 354: 157–162, Bibcode:2000A&A...354..157H
- ↑ Wilson, Ralph Elmer (1953), General Catalogue of Stellar Radial Velocities, Washington: Carnegie Institution of Washington, Bibcode:1953QB901.W495.....
- 1 2 McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x
- ↑ Royer, F.; et al. (October 2002), "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i", Astronomy and Astrophysics 393: 897–911, arXiv:astro-ph/0205255, Bibcode:2002A&A...393..897R, doi:10.1051/0004-6361:20020943
External links
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