BD−17 63
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 00h 28m 34.306s |
| Declination | −16° 13′ 34.84″ |
| Apparent magnitude (V) | 9.62 |
| Characteristics | |
| Spectral type | K4V(k) |
| Apparent magnitude (B) | 10.748 |
| Apparent magnitude (J) | 7.574±0.019 |
| Apparent magnitude (H) | 7.027±0.033 |
| Apparent magnitude (K) | 6.914±0.024 |
| B−V color index | 1.128±0.010 |
| Astrometry | |
| Radial velocity (Rv) | 2.93±0.15 km/s |
| Proper motion (μ) | RA: −354.939(22) mas/yr Dec.: −227.995(15) mas/yr |
| Parallax (π) | 28.9723±0.0212 mas |
| Distance | 112.58 ± 0.08 ly (34.52 ± 0.03 pc) |
| Absolute magnitude (MV) | 6.86 |
| Details | |
| Mass | 0.72±0.01 M☉ |
| Radius | 0.70±0.01 R☉ |
| Luminosity | 0.212±0.001 L☉ |
| Surface gravity (log g) | 4.6±0.01 cgs |
| Temperature | 4,692±9 K |
| Metallicity [Fe/H] | −0.03±0.06 dex |
| Rotational velocity (v sin i) | 1.5 km/s |
| Age | 10.5±2.6 Gyr 4.3±4 Gyr |
| Other designations | |
| Felixvarela, HIP 2247, SAO 147293, PPM 208851, 2MASS J00283433-1613343 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
BD−17 63 is a K-type main-sequence star in the southern constellation Cetus. It is a 10th magnitude star at a distance of 113 light-years from Earth. The star is rotating slowly with a negligible level of magnetic activity and an age of over 4 billion years.
The star BD-17 63 is named Felixvarela. The name was selected in the NameExoWorlds campaign by Cuba, during the 100th anniversary of the IAU. Felix Varela (1788–1853) was the first to teach science in Cuba.