KELT-10
KELT-10, also known as CD−47°12635, is a sun-like star in the southern constellation Telescopium. It has an apparent magnitude of 10.62, making it readily visible in telescopes, but not to the naked eye. Parallax measurements from the Gaia spacecraft place the star at a distance of 617 light years; it is currently receding with a radial velocity of 31.6 km/s.
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Telescopium |
| Right ascension | 18h 58m 11.6095s |
| Declination | −47° 00′ 11.6643″ |
| Apparent magnitude (V) | +10.62 |
| Characteristics | |
| Spectral type | G0 V |
| B−V color index | +0.72 |
| Variable type | PT |
| Astrometry | |
| Radial velocity (Rv) | 31.61±1.29 km/s |
| Proper motion (μ) | RA: +1.464 mas/yr Dec.: −15.600 mas/yr |
| Parallax (π) | 5.2834 ± 0.0174 mas |
| Distance | 617 ± 2 ly (189.3 ± 0.6 pc) |
| Details | |
| Mass | 1.07+0.12 −0.15 M☉ |
| Radius | 1.21+0.05 −0.03 R☉ |
| Luminosity | 1.40±0.02 L☉ |
| Surface gravity (log g) | 4.32+0.02 −0.03 cgs |
| Temperature | 5,948±74 K |
| Metallicity [Fe/H] | +0.1±0.1 dex |
| Age | 4.5±0.7 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
KELT-10 has a stellar classification of G0 V, indicating that it is a yellow dwarf like the Sun. However, the object is 7% more massive and 21% larger. It is also slightly hotter, with an effective temperature of 5,948 K compared to the Sun's of 5,778 K. The star has a similar age, with an age of 4.5 billion years and more luminous, having a luminosity 40% greater. KELT-10's iron abundance is 123% that of the Sun, consistent with a planetary host. However, this amount is poorly constrained.