 Alight curve for LHA 120-S 79, Adapted from Manicket al. (2018). The data were folded with the "formal period" which is twice the 37.2 fundamental period.[1] | |
| Observation data EpochJ2000 EquinoxJ2000 | |
|---|---|
| Constellation | Dorado[2] |
| Right ascension | 05h 04m 44.84888s[3] |
| Declination | −68° 58′ 31.5436″[3] |
| Apparent magnitude (V) | 13.77[4] |
| Characteristics | |
| Spectral type | B2IIIe[5] |
| U−Bcolor index | -0.19[4] |
| B−Vcolor index | 0.84[4] |
| Variable type | RV Tauri variable[1] |
| Astrometry | |
| Proper motion (μ) | RA: 1.672[3]mas/yr Dec.: 0.061[3]mas/yr |
| Parallax (π) | −0.0139±0.0142 mas[3] |
| Distance | 50,000 pc |
| Absolute magnitude (MV) | −4.725[citation needed] |
| Details[1] | |
| Radius | 35.09[a] R☉ |
| Luminosity | 14,073 L☉ |
| Temperature | 10,624 K |
| Other designations | |
| OGLE LMC-T2CEP-199,2MASS J05044482-6858317[6] | |
| Database references | |
| SIMBAD | data |
LHA 120-S 79 is anRV Tauri variable star located in theLarge Magellanic Cloud, located about 163,000 light years away in the constellation ofDorado, with a period of 37.203 days. The star is extremely hot for a star of its type, as its temperature is over 10,000 K,[1] and it is hot enough to be classified as a B-typeblue giant, as well as being the hottestRV Tauri variable in the LMC. LHA 120-S 79 is also extremely luminous, at over 14,000 L☉,[1] and it is the most luminous known star of its type in the galaxy.
However, the star may be less luminous than it seems, as its spectral energy distribution is contaminated by a very nearby star, 2MASS J05044388−6858371, which is also a long-period variable star and is just 8 arcseconds from LHA 120-S 79.[1]
