HAT-P-33

Last updated
HAT-P-33
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Gemini [1]
Right ascension 07h 32m 44.2174s [2]
Declination +33° 50′ 06.115″ [2]
Apparent magnitude  (V)11.120±0.050 [3]
Characteristics
Evolutionary stage main sequence [2]
Spectral type F4 [4]
Apparent magnitude  (B)11.583±0.066 [3]
Astrometry
Proper motion (μ)RA: −0.125(24) mas/yr [2]
Dec.: −2.444(23) mas/yr [2]
Parallax (π)2.5186±0.0195  mas [2]
Distance 1,290 ± 10  ly
(397 ± 3  pc)
Details [5]
Mass 1.375±0.040  M☉
Radius 1.637±0.034  R☉
Luminosity 4.15±0.33  L☉
Surface gravity (log g)4.15±0.01  cgs
Temperature 6446±88  K
Metallicity [Fe/H]0.07±0.08  dex
Rotational velocity (v sin i)13.7±0.5 km/s
Age 2.3±0.3  Gyr
Other designations
TYC 2461-988-1, GSC 2461-00988, 2MASS J07324421+3350061 [6]
Database references
SIMBAD data

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. [5] A search for a binary companion star using adaptive optics at the MMT Observatory was negative. [7]

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. [8]

The HAT-P-33 planetary system [8]
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±0.00183.47447472±0.000000880.180+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. 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 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. ↑ Su, Tianhao; Zhang, Li-yun; Long, Liu; Han, Xianming L.; Misra, Prabhakar; Meng, Gang; Pi, Qingfeng; Yang, Zilu; Yang, Jiawei (2022). "Magnetic Activity and Physical Parameters of Exoplanet Host Stars Based on LAMOST DR7, TESS, Kepler, and K2 Surveys". The Astrophysical Journal Supplement Series. 261 (2): 26. Bibcode:2022ApJS..261...26S. doi: 10.3847/1538-4365/ac7151 .
  5. 1 2 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.
  6. ↑ "HAT-P-33". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2019-01-23.
  7. ↑ 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.
  8. 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.


This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.