Astronomy:HAT-P-33
From HandWiki
Short description: F-type star in the constellation Gemini
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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[2] mas |
| Distance | 1,310 ± 20 ly (401 ± 8 pc) |
| Details[4] | |
| 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 | |
| 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.[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]
| 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
- ↑ Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific 99 (617): 695–699. doi:10.1086/132034. Bibcode: 1987PASP...99..695R. Vizier query form
- ↑ 2.0 2.1 2.2 2.3 2.4 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 3.0 3.1 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
- ↑ 4.0 4.1 4.2 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. doi:10.1088/0004-637X/742/1/59. Bibcode: 2011ApJ...742...59H.
- ↑ "HAT-P-33". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HAT-P-33.
- ↑ 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. doi:10.1088/0004-6256/146/1/9. Bibcode: 2013AJ....146....9A.
- ↑ 7.0 7.1 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. doi:10.3847/1538-3881/aa7519. Bibcode: 2017AJ....154...49W.
 |  |
