HAT-P-33
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Gemini[1]
Right ascension 07h 32m 44.2171s[2]
Declination +33° 50′ 06.1180″[2]
Apparent magnitude (V) 11.120±0.050[3]
Characteristics
Spectral type late-F[4]
Apparent magnitude (B) 11.583±0.066 [3]
Astrometry
Proper motion (μ) RA: 0.096±0.073[2] mas/yr
Dec.: −2.647±0.070[2] mas/yr
Parallax (π)2.4966 ± 0.0475 mas[2]
Distance1,310 ± 20 ly
(401 ± 8 pc)
Details[4]
Mass1.375±0.040 M☉
Radius1.637±0.034 R☉
Luminosity4.15±0.33 L☉
Surface gravity (log g)4.15±0.01 cgs
Temperature6446±88 K
Metallicity [Fe/H]0.07±0.08 dex
Rotational velocity (v sin i)13.7±0.5 km/s
Age2.3±0.3 Gyr
Other designations
TYC 2461-988-1, GSC 2461-00988, 2MASS J07324421+3350061[5]
Database references
SIMBADdata

HAT-P-33 (2MASS J07324421+335006, GSC 2461-00988) is a late-F dwarf star. It is orbited by a planet called HAT-P-33b.[4] A search for a binary companion star using adaptive optics at the MMT Observatory was negative.[6]

Planetary system

The transiting hot Jupiter exoplanet orbiting HAT-P-33 was discovered by the HATNet Project in 2011. An effort to detect transit timing variations due to other planets found none.[7]

The HAT-P-33 planetary system[7]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 0.72+0.13
−0.12 MJ		 0.0505±0.0018 3.47447472±0.00000088 0.180+0.11
−0.096		 88.2+1.2
−1.3°		 1.87+0.26
−0.20 RJ

References

  1. ↑ Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
  2. 1 2 3 4 5 Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  3. 1 2 Henden, A. A.; et al. (2016). "VizieR Online Data Catalog: AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)". VizieR On-line Data Catalog: II/336. Originally Published in: 2015AAS...22533616H. 2336. Bibcode:2016yCat.2336....0H. Vizier catalog entry
  4. 1 2 3 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:1106.1212. Bibcode:2011ApJ...742...59H. doi:10.1088/0004-637X/742/1/59. S2CID 118590713.
  5. ↑ "HAT-P-33". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-01-23.
  6. ↑ 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:1305.6548. Bibcode:2013AJ....146....9A. doi:10.1088/0004-6256/146/1/9. S2CID 119117620.
  7. 1 2 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:1705.08605. Bibcode:2017AJ....154...49W. doi:10.3847/1538-3881/aa7519. S2CID 119245125.


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