HD 15082
HD 15082 (also known as WASP-33) is a star located roughly 399 light years away in the northern constellation of Andromeda. The star is a Delta Scuti variable and a planetary transit variable. A hot Jupiter type extrasolar planet, named WASP-33b or HD 15082b, orbits this star with an orbital period of 1.22 days. It is the first Delta Scuti variable known to host a planet.
A light curve for V807 Andromedae (HD 15082), plotted from TESS data. The deep minima are caused by the planet transits. | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 02h 26m 51.0583s |
| Declination | +37° 33′ 01.7377″ |
| Apparent magnitude (V) | 8.3 |
| Characteristics | |
| Spectral type | A5 |
| B−V color index | 0.27 |
| Variable type | δ Sct+Planetary transit variable |
| Astrometry | |
| Radial velocity (Rv) | −9.20±2.8 km/s |
| Proper motion (μ) | RA: −0.976±0.118 mas/yr Dec.: −8.977±0.105 mas/yr |
| Parallax (π) | 8.1724 ± 0.0661 mas |
| Distance | 399 ± 3 ly (122.4 ± 1.0 pc) |
| Details | |
| Mass | 1.55 ± 0.04 M☉ |
| Radius | 1.51 R☉ |
| Surface gravity (log g) | 4.3 ± 0.2 cgs |
| Temperature | 7,400 ± 200 K |
| Metallicity [Fe/H] | 0.1 ± 0.2 dex |
| Rotational velocity (v sin i) | 86 km/s |
| Age | 100 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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