WASP-63
WASP-63 or Kosjenka, also known as CD-38 2551, is a single star with an exoplanetary companion in the southern constellation of Columba. It is too faint to be visible with the naked eye, having an apparent visual magnitude of 11.1. The distance to this system is approximately 942 light-years (289 parsecs) based on parallax measurements, but it is drifting closer with a radial velocity of −24 km/s.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Columba |
| Right ascension | 06h 17m 20.7485s |
| Declination | −38° 19′ 23.754″ |
| Apparent magnitude (V) | 11.10±0.08 |
| Characteristics | |
| Evolutionary stage | subgiant |
| Spectral type | G8 |
| B−V color index | 0.741±0.022 |
| J−K color index | 0.425±0.032 |
| Astrometry | |
| Radial velocity (Rv) | −23.55±0.25 km/s |
| Proper motion (μ) | RA: −17.469 mas/yr Dec.: −27.292 mas/yr |
| Parallax (π) | 3.4609 ± 0.0118 mas |
| Distance | 942 ± 3 ly (288.9 ± 1.0 pc) |
| Details | |
| Mass | 1.10+0.06 −0.04 M☉ |
| Radius | 1.76+0.11 −0.08 R☉ |
| Luminosity | 2.76 L☉ |
| Surface gravity (log g) | 4.01±0.03 cgs |
| Temperature | 5715±60 K |
| Metallicity [Fe/H] | 0.08±0.07 dex 0.28±0.05 dex |
| Rotational velocity (v sin i) | 2.8±0.5 km/s |
| Age | 8.3+1.3 −1.2 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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