| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pisces2 |
| Right ascension | 01h 46m 31.8576s3 |
| Declination | 02° 42′ 02.030″3 |
| Apparent magnitude (V) | 9.524 |
| Characteristics | |
| Evolutionary stage | main sequence53 |
| Spectral type | F75 |
| B−V color index | 0.61 |
| J−H color index | 0.21 |
| J−K color index | 0.3 |
| Astrometry | |
| Radial velocity (Rv) | −1.152±0.00336 km/s |
| Proper motion (μ) | RA: +45.5313 mas/yr Dec.: −40.5933 mas/yr |
| Parallax (π) | 5.2899±0.0826 mas3 |
| Distance | 617 ± 10 ly (189 ± 3 pc) |
| Details | |
| Mass | 1.280±0.0287 M☉ |
| Radius | 1.667±0.0207 R☉ |
| Luminosity | 4.63 L☉ |
| Surface gravity (log g) | 4.4±0.15 cgs |
| Temperature | 6,250±1005 K |
| Metallicity [Fe/H] | 0.23±0.15 dex |
| Rotational velocity (v sin i) | 3.3±0.65 km/s |
| Age | 5.3+6.1 −2.95 Gyr |
| Other designations | |
| WASP-76, 2MASS J01463185+0242019, Gaia DR3 2512326349403275520 | |
| Database references | |
| SIMBAD | data |
WASP-76, also known as BD+01 316, is a yellow-white main sequence star in the constellation of Pisces. A suspected stellar companion at a projected separation of 85 astronomical units was reported in 2014.8
After about five billion years, WASP-76 has expanded and become more luminous than at the start of its main sequence life, but most probably has not yet reached the subgiant branch.35
Planetary system
The "hot Jupiter" class planet WASP-76b was discovered around WASP-76 in 2013.
Analysis of transit-timing variations suggest an additional planet in the system.7
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b | 0.92 MJ | 0.0316±0.0002 | 1.80988132(12) | 0.00087±0.00031 | 87.88±0.16 | 1.842±0.024 RJ |
References
References
- "Gemini North Detects Multiple Rock-Forming Elements in the Atmosphere of a Scorching Exoplanet" (Press release). NOIRLab. 2023-06-14. Retrieved 2025-06-13.
- Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
- West, R. G.; Hellier, C.; Almenara, J.-M.; Anderson, D. R.; Barros, S. C. C.; Bouchy, F.; Brown, D. J. A.; Collier Cameron, A.; Deleuil, M.; Delrez, L.; Doyle, A. P.; Faedi, F.; Fumel, A.; Gillon, M.; Gómez Maqueo Chew, Y.; Hébrard, G.; Jehin, E.; Lendl, M.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Smith, A. M. S.; Southworth, J.; Triaud, A. H. M. J.; Udry, S. (2016). "Three irradiated and bloated hot Jupiters". Astronomy & Astrophysics. 585: A126. arXiv:1310.5607. doi:10.1051/0004-6361/201527276. S2CID 54746373.
- Soubiran, C.; Jasniewicz, G.; Chemin, L.; Zurbach, C.; Brouillet, N.; Panuzzo, P.; Sartoretti, P.; Katz, D.; Le Campion, J. -F.; Marchal, O.; Hestroffer, D.; Thévenin, F.; Crifo, F.; Udry, S.; Cropper, M.; Seabroke, G.; Viala, Y.; Benson, K.; Blomme, R.; Jean-Antoine, A.; Huckle, H.; Smith, M.; Baker, S. G.; Damerdji, Y.; Dolding, C.; Frémat, Y.; Gosset, E.; Guerrier, A.; Guy, L. P.; et al. (2018). "Gaia Data Release 2. The catalogue of radial velocity standard stars". Astronomy and Astrophysics. 616: A7. arXiv:1804.09370. Bibcode:2018A&A...616A...7S. doi:10.1051/0004-6361/201832795. S2CID 52952408.
- Wang, Weilong; Gu, Shenghong; Wang, Xiaobin; Sun, Leilei; Lee, Byeong-Cheol; Kwok, Chi-Tai; Hui, Ho-Keung; Dou, Jiangpei; Xiang, Yue; Cao, Dongtao; Xu, Fukun (June 2025). "Observations and Studies on the Transiting Systems HAT-P-36, XO-2 and WASP-76". The Astronomical Journal. 169 (6): 342. Bibcode:2025AJ....169..342W. doi:10.3847/1538-3881/add1de. ISSN 0004-6256.
- Ngo, Henry; Knutson, Heather A.; Hinkley, Sasha; Bryan, Marta; Crepp, Justin R.; Batygin, Konstantin; Crossfield, Ian; Hansen, Brad; Howard, Andrew W.; Johnson, John A.; Mawet, Dimitri; Morton, Timothy D.; Muirhead, Philip S.; Wang, Ji (2016). "Friends of Hot Jupiters. IV. Stellar Companions Beyond 50 au Might Facilitate Giant Planet Formation, but Most are Unlikely to Cause Kozai-Lidov Migration". The Astrophysical Journal. 827 (1): 8. arXiv:1606.07102. Bibcode:2016ApJ...827....8N. doi:10.3847/0004-637X/827/1/8.