HD 179949
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 19h 15m 33.2301s |
| Declination | −24° 10′ 45.671″ |
| Apparent magnitude (V) | 6.25 |
| Characteristics | |
| Spectral type | F8 V |
| B−V color index | 0.548±0.009 |
| Astrometry | |
| Radial velocity (Rv) | −24.56±0.08 km/s |
| Proper motion (μ) | RA: 118.567(30) mas/yr Dec.: −102.364(22) mas/yr |
| Parallax (π) | 36.3115±0.0375 mas |
| Distance | 89.82 ± 0.09 ly (27.54 ± 0.03 pc) |
| Absolute magnitude (MV) | 4.05 |
| Details | |
| Mass | 1.23±0.01 M☉ |
| Radius | 1.2±0.01 R☉ |
| Luminosity | 1.95±0.01 L☉ |
| Surface gravity (log g) | 4.36±0.01 cgs |
| Temperature | 6,220±28 K |
| Metallicity [Fe/H] | +0.21 dex |
| Rotational velocity (v sin i) | 6.84 km/s |
| Age | 1.20±0.60 Gyr |
| Other designations | |
| Gumala, V5652 Sgr, CD−24° 15161, GJ 749, HD 179949, HIP 94645, HR 7291, SAO 187883 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 179949 is a 6th magnitude star in the constellation of Sagittarius. It is a yellow-white dwarf (spectral class F8 V), a type of star hotter and more luminous than the Sun. The star is located about 90 light-years from Earth and might be visible under exceptionally good conditions to an experienced observer without technical aid; usually binoculars are needed.
The star HD 179949 is named Gumala. The name was selected in the NameExoWorlds campaign by Brunei, during the 100th anniversary of the IAU. Gumala is a Malay word, which means a magic bezoar stone found in snakes, dragons, etc.