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Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Gemini[1]
Right ascension 07h 32m 44.20s[2]
Declination +33° 50′ 06.2″[2]
Apparent magnitude (V) 11.188[2]
Spectral type late-F[2]
Distance 1,262 ± 29[2] ly
(387±9[2] pc)
Mass 1.375±0.040[2] M
Radius 1.637±0.034[2] R
Luminosity 4.15±0.33[2] L
Surface gravity (log g) 4.15±0.01[2] cgs
Temperature 6446±88[2] K
Metallicity [Fe/H] 0.07±0.08[2] dex
Rotational velocity (v sin i) 13.7±0.5[2] km/s
Age 2.3±0.3[2] Gyr
Other designations
2MASS J07324421+335006, GSC 2461-00988, TYC 2461-988-1
Database references

HAT-P-33 (2MASS J07324421+335006, GSC 2461-00988) is a late-F dwarf star. It is orbited by a planet HAT-P-33b.[2] A search for a binary companion star using adaptive optics at the MMT Observatory was negative.[3] An effort to detect transit timing variations due to other planets found none.[4]


  1. ^ Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034.  Vizier query form
  2. ^ a b c d e f g h i j k l m n o Hartman, J. D.; et al. (2011). "HAT-P-32b and HAT-P-33b: Two Highly Inflated Hot Jupiters Transiting High-jitter Stars". The Astrophysical Journal. 742 (1). 59. arXiv:1106.1212Freely accessible. Bibcode:2011ApJ...742...59H. doi:10.1088/0004-637X/742/1/59. 
  3. ^ Adams, E. R.; et al. (2013). "Adaptive Optics Images. II. 12 Kepler Objects of Interest and 15 Confirmed Transiting Planets". The Astronomical Journal. 146 (1). 9. arXiv:1305.6548Freely accessible. Bibcode:2013AJ....146....9A. doi:10.1088/0004-6256/146/1/9. 
  4. ^ Wang, Yong-Hao; et al. (2017). "Transiting Exoplanet Monitoring Project (TEMP). II. Refined System Parameters and Transit Timing Analysis of HAT-P-33b". The Astronomical Journal. 154 (2). 49. arXiv:1705.08605Freely accessible. Bibcode:2017AJ....154...49W. doi:10.3847/1538-3881/aa7519.