HAT-P-25b: A hot-Jupiter transiting a moderately faint G star

S. N. Quinn, G. A. Bakos, J. Hartman, G. Torres, G. Kovács, D. W. Latham, R. W. Noyes, D. A. Fischer, J. A. Johnson, G. W. Marcy, A. W. Howard, A. Szentgyorgyi, G. Fũrész, L. A. Buchhave, B. Béky, D. D. Sasselov, R. P. Stefanik, G. Perumpilly, M. Everett, J. LázárI. Papp, P. Sári

Research output: Contribution to journalArticle

19 Citations (Scopus)


We report the discovery of HAT-P-25b, a transiting extrasolar planet orbiting the V = 13.19 G5 dwarf star GSC 1788-01237, with a period P = 3.652836 0.000019 days, transit epoch Tc = 2455176.85173 0.00047 (BJD - barycentric Julian dates throughout the paper are calculated from Coordinated Universal Time, UTC), and transit duration 0.1174 0.0017days. The host star has a mass of 1.01 0.03 M, radius of 0.96+0.05 - 0.04 R, effective temperature 5500 80K, and metallicity [Fe/H] = +0.31 0.08. The planetary companion has a mass of 0.567 0.022M J and radius of 1.190+0.081 - 0.056R J yielding a mean density of 0.42 0.07 g cm-3.

Original languageEnglish
Article number80
JournalAstrophysical Journal
Issue number1
Publication statusPublished - Jan 20 2012


  • planetary systems
  • stars: individual (HAT-P-25, GSC 1788-01237)
  • techniques: photometric
  • techniques: spectroscopic

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'HAT-P-25b: A hot-Jupiter transiting a moderately faint G star'. Together they form a unique fingerprint.

  • Cite this

    Quinn, S. N., Bakos, G. A., 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., Fũrész, G., Buchhave, L. A., Béky, B., Sasselov, D. D., Stefanik, R. P., Perumpilly, G., Everett, M., ... Sári, P. (2012). HAT-P-25b: A hot-Jupiter transiting a moderately faint G star. Astrophysical Journal, 745(1), [80]. https://doi.org/10.1088/0004-637X/745/1/80