HAT-P-5 is a 12th magnitude star in the constellation Lyra, approximately 1,000 light years away from Earth. It is a spectral type G star, about 1.16 solar masses and radii greater than the Sun, and only 200 kelvins hotter. It is estimated to be 2.6 billion years old.[1][2]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lyra[3] |
| Right ascension | 18h 17m 37.3127s[4] |
| Declination | +36° 37′ 17.170″[4] |
| Apparent magnitude (V) | +11.95 |
| Characteristics | |
| Spectral type | G1V |
| Variable type | planetary transit[5] |
| Astrometry | |
| Proper motion (μ) | RA: 11.925(11) mas/yr[4] Dec.: 5.904(14) mas/yr[4] |
| Parallax (π) | 3.2184 ± 0.0105 mas[4] |
| Distance | 1,013 ± 3 ly (311 ± 1 pc) |
| Details | |
| Mass | 1.16 ± 0.062 M☉ |
| Radius | 1.167 ± 0.049 R☉ |
| Surface gravity (log g) | 4.37 ± 0.03[6] cgs |
| Temperature | 5863 ± 80[6] K |
| Metallicity [Fe/H] | 0.10 ± 0.10[6] dex |
| Rotational velocity (v sin i) | 2.8 ± 1.0[6] km/s |
| Age | 2.6 ± 1.8 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
The star HAT-P-5 is named Chasoň. The name was selected in the NameExoWorlds campaign by Slovakia, during the 100th anniversary of the IAU. Chasoň is an ancient Slovak term for Sun.[8][9]
Planetary system
editOn October 9, 2007, a report was submitted to The Astrophysical Journal Letters telling of the discovery of an exoplanet transiting HAT-P-5. The planet was described as a Jupiter-like hot Jupiter, with a radius about one and one quarter times that of Jupiter, and nearly the same mass. Its density was reported as 0.66 ± 0.11 g/cm3, and its inclination 86.75 ± 0.44°.[5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b / Kráľomoc | 1.06 ± 0.11 MJ | 0.04075 ± 0.00076 | 2.788491 ± 2.5e-05 | 0 | 86.75±0.44[5]° | 1.204±0.017[10] RJ |
See also
editReferences
edit- ^ a b "Notes for Planet HAT-P-5 b". Extrasolar Planets Encyclopaedia. Archived from the original on May 5, 2012. Retrieved October 16, 2007.
- ^ a b "Simbad Query Result". Simbad. Retrieved October 16, 2007.
- ^ 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
- ^ a b c d 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.
- ^ a b c Bakos, G. Á.; et al. (2007). "HAT-P-5b: A Jupiter-like Hot Jupiter Transiting a Bright Star". The Astrophysical Journal Letters. 671 (2): L173–L176. arXiv:0710.1841. Bibcode:2007ApJ...671L.173B. doi:10.1086/525022. S2CID 15514048.
- ^ a b c d Torres, Guillermo; et al. (2012). "Improved Spectroscopic Parameters for Transiting Planet Hosts". The Astrophysical Journal. 757 (2). 161. arXiv:1208.1268. Bibcode:2012ApJ...757..161T. doi:10.1088/0004-637X/757/2/161. S2CID 16580774.
- ^ "HAT-P-5". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2023-02-25.
- ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
- ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
- ^ Wang, Xian-Yu; et al. (1 July 2021). "Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves". The Astrophysical Journal Supplement Series. 255 (1). 15. arXiv:2105.14851. Bibcode:2021ApJS..255...15W. doi:10.3847/1538-4365/ac0835. S2CID 235253975.
External links
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