WASP-52
WASP-52 is a K-type main-sequence star about 570 light-years away. It is older than the Sun at 10.7+1.9
−4.5 billion years, but it has a similar fraction of heavy elements.
The star has prominent starspot activity, with 3% to 14% of the stellar surface covered by areas 575±150 K cooler than the rest of the photosphere.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pegasus |
| Right ascension | 23h 13m 58.7576s |
| Declination | 08° 45′ 40.5713″ |
| Apparent magnitude (V) | 12.0 |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | K2V |
| Astrometry | |
| Radial velocity (Rv) | −26.604 km/s |
| Proper motion (μ) | RA: −6.942 mas/yr Dec.: −44.330 mas/yr |
| Parallax (π) | 5.7262 ± 0.0134 mas |
| Distance | 570 ± 1 ly (174.6 ± 0.4 pc) |
| Details | |
| Mass | 0.87±0.03 M☉ |
| Radius | 0.79±0.02 R☉ |
| Surface gravity (log g) | 4.58±0.01 cgs |
| Temperature | 5,000±100 K |
| Metallicity [Fe/H] | 0.03±0.12 dex |
| Rotation | 16±2 d |
| Rotational velocity (v sin i) | 1.77+0.19 −0.20 km/s |
| Age | 10.7+1.9 −4.5 Gyr |
| Other designations | |
Anadolu, Gaia EDR3 2666015878575546496, 2MASS J23135873+0845405 | |
| Database references | |
| SIMBAD | data |
A multiplicity survey in 2015 did not detect any stellar companions. The star was named Anadolu in 2019 by Turkish astronomers as part of the NameExoWorlds contest.
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