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.[5] The star is enriched in heavy elements, having about twice amount of metals compared to solar abundance.

Planetary system

In 2010 a transiting hot Jupiter like planet was detected.[6] It has an equilibrium temperature of 1,182±25 K.[4] The stability of orbits within circumstellar habitable zone is not significantly affected by the HAT-P-25b planet.[7]

Size comparison of HAT-P-25 b and Jupiter
The HAT-P-25 planetary system[6][4]
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
b 0.569+0.023
−0.022 MJ 		0.0466±0.0005 3.65281514+0.00000076
−0.00000075 		0.023+0.022
−0.014 		87.6±0.5° 1.135±0.048 RJ

References

  1. ^ 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.
  2. ^ a b c d e 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.
  3. ^ a b "HAT-P-25". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-05-06.
  4. ^ a b c d e 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.
  5. ^ Shkolnik, Evgenya L. (2013). "An Ultraviolet Investigation of Activity on Exoplanet Host Stars". The Astrophysical Journal. 766 (1): 9. arXiv:1301.6192. Bibcode:2013ApJ...766....9S. doi:10.1088/0004-637X/766/1/9.
  6. ^ a b 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.
  7. ^ Georgakarakos, Nikolaos; Eggl, Siegfried; Dobbs-Dixon, Ian (2018). "Giant Planets: Good Neighbors for Habitable Worlds?". The Astrophysical Journal. 856 (2): 155. arXiv:1804.02183. Bibcode:2018ApJ...856..155G. doi:10.3847/1538-4357/aaaf72.