| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 07 20 40.4565 |
| Declination | +37° 08′ 26.343″ |
| Apparent magnitude (V) | 12.34 ± 0.27 |
| Characteristics | |
| Spectral type | F |
| Apparent magnitude (B) | 12.35 ± 0.23 |
| Apparent magnitude (V) | 12.34 ± 0.27 |
| Apparent magnitude (J) | 11.274 ± 0.022 |
| Apparent magnitude (H) | 11.04 ± 0.03 |
| Apparent magnitude (K) | 11.015 ± 0.021 |
| Variable type | planetary transit |
| Astrometry | |
| Proper motion (μ) | RA: −9.796(16) mas/yr Dec.: −13.029(14) mas/yr |
| Parallax (π) | 2.1626 ± 0.0140 mas |
| Distance | 1,508 ± 10 ly (462 ± 3 pc) |
| Details | |
| Mass | 1.28 ± 0.13 M☉ |
| Radius | 1.32 ± 0.07 R☉ |
| Surface gravity (log g) | 4.29 ± 0.03 cgs |
| Temperature | 6253 ± 84 K |
| Metallicity | 0.16 ± 0.09 dex |
| Rotational velocity (v sin i) | 13.4 ± 1.4 km/s |
| Age | 1.6 −1.4 Gyr |
| Equatorial | 201,21 m/s |
| Other designations | |
| Tevel, Gaia DR3 898130030131443584, TYC 2463-281-1, GSC 02463-00281, 2MASS J07204044+3708263 | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HAT-P-9 is a magnitude 12 F star approximately 1500 light years away in the constellation Auriga. A search for a binary companion star using adaptive optics at the MMT Observatory was negative.
The star HAT-P-9 is named Tevel. The name was selected in the NameExoWorlds campaign by Israel, during the 100th anniversary of the IAU. The Hebrew word תֵבֵל tevel means "World" or "Universe".
Planetary system
An exoplanet orbiting the star, HAT-P-9b, was discovered by the transit method on June 26, 2008.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b / Alef | 0.78 ± 0.09 MJ | 0.053 ± 0.002 | 3.92289 ± 4e-05 | 0 | — | — |
See also
References
- ^ 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.
- ^ "SIMBAD query result: TYC 2463-281-1 -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-18.
- ^ Shporer, Avi; et al. (2009). "HAT-P-9b: A Low-Density Planet Transiting a Moderately Faint F Star". The Astrophysical Journal. 690 (2): 1393–1400. arXiv:0806.4008. Bibcode:2009ApJ...690.1393S. doi:10.1088/0004-637X/690/2/1393. S2CID 930937.
- ^ 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.
- 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.
- "Approved names". NameExoworlds. Retrieved 2020-01-02.
- "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
External links
- Image HAT-P-9
- "HAT-P-9". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-05-18.
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