HAT-P-33
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Gemini[1] |
| Right ascension | 07h 32m 44.2174s[2] |
| Declination | +33° 50′ 06.115″[2] |
| Apparent magnitude (V) | 11.120±0.050[3] |
| Characteristics | |
| Evolutionary stage | main sequence[2] |
| Spectral type | F4[4] |
| Apparent magnitude (B) | 11.583±0.066 [3] |
| Astrometry | |
| Proper motion (μ) | RA: −0.125(24) mas/yr[2] Dec.: −2.444(23) mas/yr[2] |
| Parallax (π) | 2.5186±0.0195 mas[2] |
| Distance | 1,290 ± 10 ly (397 ± 3 pc) |
| Details[5] | |
| Mass | 1.375±0.040 M☉ |
| Radius | 1.637±0.034 R☉ |
| Luminosity | 4.15±0.33 L☉ |
| Surface gravity (log g) | 4.15±0.01 cgs |
| Temperature | 6446±88 K |
| Metallicity [Fe/H] | 0.07±0.08 dex |
| Rotational velocity (v sin i) | 13.7±0.5 km/s |
| Age | 2.3±0.3 Gyr |
| Other designations | |
| TYC 2461-988-1, GSC 2461-00988, 2MASS J07324421+3350061[6] | |
| Database references | |
| SIMBAD | data |
HAT-P-33 (2MASS J07324421+335006, GSC 2461-00988) is a late-F dwarf star. It is orbited by a planet called HAT-P-33b.[5] A search for a binary companion star using adaptive optics at the MMT Observatory was negative.[7]
