HAT-P-25
HAT-P-25 is a G-type main-sequence star about 985 light-years away. It has a very low flare activity. The star is enriched in heavy elements, having about twice amount of metals compared to solar abundance.
Size comparison of HAT-P-25 b and Jupiter
Planetary system
In 2010 a transiting hot Jupiter like planet was detected. It has an equilibrium temperature of 1182±25 K. The stability of orbits within circumstellar habitable zone is not significantly affected by the HAT-P-25b planet.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.569 −0.022 MJ |
0.0466±0.0005 | 3.65281514 −0.00000075 |
0.023 −0.014 |
87.6±0.5° | 1.135±0.048 RJ |
References
- ^ 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.
- ^ HAT-P-25 -- Star
- ^ Wang, Xian-Yu; Wang, Songhu; Hinse, Tobias C.; Li, Kai; Wang, Yong-Hao; Laughlin, Gregory; Liu, Hui-Gen; Zhang, Hui; Wu, Zhen-Yu; Zhou, Xu; Zhou, Ji-Lin; Hu, Shao-Ming; Wu, Dong-Hong; Peng, Xi-Yan; Chen, Yuan-Yuan (2018), "Transiting Exoplanet Monitoring Project (TEMP). IV. Refined System Parameters, Transit Timing Variations and Orbital Stability of the Transiting Planetary System HAT-P-25", Publications of the Astronomical Society of the Pacific, 130 (988): 064401, arXiv:1805.01580, Bibcode:2018PASP..130f4401W, doi:10.1088/1538-3873/aab93e, S2CID 118993367
- ^ Evgenya L. Shkolnik, "AN ULTRAVIOLET INVESTIGATION OF ACTIVITY ON EXOPLANET HOST STARS", 2013
- ^ Quinn, S. N.; Bakos, G. Á.; Hartman, J.; Torres, G.; Kovács, G.; Latham, D. W.; Noyes, R. W.; Fischer, D. A.; Johnson, J. A.; Marcy, G. W.; Howard, A. W.; Szentgyorgyi, A.; Fűrész, G.; Buchhave, L. A.; Béky, B.; Sasselov, D. D.; Stefanik, R. P.; Perumpilly, G.; Everett, M.; Lázár, J.; Papp, I.; Sári, P. (2010), "HAT-P-25b: a Hot-Jupiter Transiting a Moderately Faint G Star", The Astrophysical Journal, 745: 80, arXiv:1008.3565, doi:10.1088/0004-637X/745/1/80, S2CID 119291022
- ^ Nikolaos Georgakarakos, Siegfried Eggl, and Ian Dobbs-Dixon, "Giant Planets: Good Neighbors for Habitable Worlds?", 2018
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