 Artist concept of the stars, Sun and planets not drawn to scale | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Dorado |
| Right ascension | 05h 36m 25.843s[1] |
| Declination | –69° 22′ 55.90″[1] |
| Apparent magnitude (V) | 10.95[2] |
| Characteristics | |
| Spectral type | B0.5Ia+[3] |
| U−B color index | −0.88[2] |
| B−V color index | +0.15[2] |
| Variable type | LBV?[4][5] |
| Astrometry | |
| Radial velocity (Rv) | 258[6] km/s |
| Proper motion (μ) | RA: -1.8[1] mas/yr Dec.: -15.1[1] mas/yr |
| Parallax (π) | 0.22 ± 0.42 mas[7] |
| Absolute magnitude (MV) | −8.4[4] |
| Details[3] | |
| Mass | 70 M☉ |
| Radius | 78[a] R☉ |
| Luminosity | 1,400,000 L☉ |
| Temperature | 22,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 37974 (or R 126) a variable B[e] hypergiant in the Large Magellanic Cloud. It is surrounded by an unexpected dust disk.
- ^ a b c d Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862.
- ^ a b c Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
- ^ a b Kastner, J. H.; Buchanan, C. L.; Sargent, B.; Forrest, W. J. (2006). "SpitzerSpectroscopy of Dusty Disks around B\e] Hypergiants in the Large Magellanic Cloud". The Astrophysical Journal. 638 (1): L29–L32. Bibcode:2006ApJ...638L..29K. doi:10.1086/500804.
- ^ a b Van Genderen, A. M.; Sterken, C. (2002). "Light variations of massive stars (alpha Cyg variables). XVIII. The B[e] supergiants S 18 in the SMC and R 66 = HDE 268835 and R 126 = HD 37974 in the LMC". Astronomy and Astrophysics. 386 (3): 926. Bibcode:2002A&A...386..926V. doi:10.1051/0004-6361:20020360.
- ^ a b Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
- ^ Feast, M. W.; Thackeray, A. D.; Wesselink, A. J. (1960). "The brightest stars in the Magellanic Clouds". Monthly Notices of the Royal Astronomical Society. 121 (4): 337. Bibcode:1960MNRAS.121..337F. doi:10.1093/mnras/121.4.337.
- ^ Gaia Collaboration (2016). "VizieR Online Data Catalog: Gaia DR1 (Gaia Collaboration, 2016)". VizieR On-line Data Catalog: I/337. Originally Published in: Astron. Astrophys. 1337. Bibcode:2016yCat.1337....0G.
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