HD 33579
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HD 33579 | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Dorado |
| Right ascension | 5.09875234 |
| Declination | -67.88636780 |
| Apparent magnitude (V) | +9.13 |
| Characteristics | |
| Spectral type | A3:Ia0e |
| U−B color index | -0.31 |
| B−V color index | +0.14 |
| Variable type | semiregular |
| Astrometry | |
| Radial velocity (Rv) | −253 km/s |
| Proper motion (μ) | RA: 2.31 mas/yr Dec.: -0.46 mas/yr |
| Parallax (π) | -0.18 mas |
| Distance | ~160,000 ly (~50,000 pc) |
| Absolute magnitude (MV) | −9.7 |
| Details | |
| Mass | 60 M☉ |
| Radius | 400 R☉ |
| Luminosity | 648,000 L☉ |
| Temperature | 7980K K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 33579 is a star in the Large Magellanic Cloud.[1]
It is a white/yellow hypergiant and one of the brightest stars in the LMC.[2] It is an extremely rare type of star currently evolving for the first time through the yellow evolutionary void from being a blue hypergiant to becoming a red hypergiant.[2] This means the star is often referred to as a yellow hypergiant although the spectral type of A3 means it is also described as a white hypergiant.[2]
References
- ↑ Przybylski, A. (1968). "The analysis of the spectrum of the Large Magellanic Cloud supergiant HD 33579". Monthly Notices of the Royal Astronomical Society. Vol. 139: p.313. Bibcode:1968MNRAS.139..313P.
- ↑ 2.0 2.1 2.2 Nieuwenhuijzen, H.; De Jager, C. (2000). "Checking the yellow evolutionary void. Three evolutionary critical Hypergiants: HD 33579, HR 8752 & IRC +10420". Astronomy and Astrophysics. v.353: p.163–176 (2000). Bibcode:2000A&A...353..163N.
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