HAT-P-25

Last updated
HAT-P-25
Observation data
Epoch J2000       Equinox J2000
Constellation Aries [1]
Right ascension 03h 13m 44.4981s [2]
Declination +25° 11′ 50.689″ [2]
Apparent magnitude  (V)13.15 [3]
Characteristics
Evolutionary stage main sequence [4]
Spectral type G5 [4]
Astrometry
Proper motion (μ)RA: 13.490(21) mas/yr [2]
Dec.: −13.684(16) mas/yr [2]
Parallax (π)3.3128±0.0178  mas [2]
Distance 985 ± 5  ly
(302 ± 2  pc)
Details [4]
Mass 1.012+0.051
−0.051  M☉
Radius 0.919±0.034  R☉
Luminosity 0.72 [2]   L☉
Surface gravity (log g)4.516+0.026
−0.025  cgs
Temperature 5,519+78
−76  K
Metallicity 0.29±0.08
Age 3.2±2.3  Gyr
Other designations
Gaia DR2 3668036348641580288, TYC 320-1027-1, GSC 0320-01027, 2MASS J14123753+0403359 [3]
Database references
SIMBAD data

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 Exoplanet Comparison HAT-P-25 b.png
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
b0.569+0.023
−0.022  MJ 		0.0466±0.00053.65281514+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. 1 2 3 4 5 6 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. 1 2 "HAT-P-25". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2025-05-06.
  4. 1 2 3 4 5 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. 1 2 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 .
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