WASP-10
WASP-10 is a star in the constellation Pegasus. The SuperWASP project has observed and classified this star as a variable star, perhaps due to the eclipsing planet.[2]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pegasus |
| Right ascension | 23h 15m 58.3005s[1] |
| Declination | +31° 27′ 46.295″[1] |
| Apparent magnitude (V) | 12.7 |
| Characteristics | |
| Spectral type | K5 |
| Apparent magnitude (B) | ~12.4[2] |
| Apparent magnitude (R) | ~12.03[2] |
| Apparent magnitude (J) | 10.603 ±0.026[2] |
| Apparent magnitude (H) | 10.117 ±0.029[2] |
| Apparent magnitude (K) | 9.983 ±0.018[2] |
| Variable type | V*(1SWASP)[2] |
| Astrometry | |
| Proper motion (μ) | RA: 25.110±0.052[1] mas/yr Dec.: −25.269±0.048[1] mas/yr |
| Parallax (π) | 7.0636 ± 0.0372[1] mas |
| Distance | 462 ± 2 ly (141.6 ± 0.7 pc) |
| Details[3] | |
| Mass | 0.71+0.086 −0.071 M☉ |
| Radius | 0.783 −0.043+0.035 R☉ |
| Temperature | 4675 ±100 K |
| Metallicity | 0.03±0.2 |
| Rotation | 11.91±0.05 d |
| Age | 6.00±4.12 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Extrasolar Planets Encyclopaedia | data |
The star is likely older than Sun, has fraction of heavy elements close to solar abundance, and is rotating rapidly, being spun up by the tides raised by the giant planet on the close orbit.[3]
Planetary system
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 3.06+0.23 −0.21 MJ |
0.0371+0.0014 −0.0013 |
3.0927616+0.0000112 −0.0000182 |
0.057+0.011 −0.005 |
— | 1.08±0.02 RJ |
| c (unconfirmed) | 0.1 MJ | — | 5.23 days | — | — | — |
WASP-10b is an extrasolar planet discovered in 2008.[4]
WASP-10c is an unconfirmed as in 2020[5] extrasolar planet inferred from transit time variations of WASP-10b's transits. It was discovered in 2010.[6]
High likelihood of another Super-Jupiter planet at wide (at least 5 astronomical units) orbit was reported in 2013.[7]
References
- 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.
- "SIMBAD query result: GSC 02752-00114 -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-06.
- Maxted, P. F. L.; Serenelli, A. M.; Southworth, J. (2015), "A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars", Astronomy & Astrophysics, 577: A90, arXiv:1503.09111, doi:10.1051/0004-6361/201525774, S2CID 53324330
- Christian; Gibson, N. P.; Simpson, E. K.; Street, R. A.; Skillen, I.; Pollacco, D.; Collier Cameron, A.; Joshi, Y. C.; et al. (December 29, 2008). "WASP-10b: a 3MJ, gas-giant planet transiting a late-type K star". Monthly Notices of the Royal Astronomical Society. 392 (4): 1585–1590. arXiv:0806.1482. Bibcode:2009MNRAS.392.1585C. doi:10.1111/j.1365-2966.2008.14164.x. S2CID 862722.
- Extrasolar Planets Encyclopaedia Planet WASP-10 c
- MacIejewski, G.; Dimitrov, D.; Neuhäuser, R.; Tetzlaff, N.; Niedzielski, A.; Raetz, St.; Chen, W. P.; Walter, F.; Marka, C.; Baar, S.; Krejcová, T.; Budaj, J.; Krushevska, V.; Tachihara, K.; Takahashi, H.; Mugrauer, M. (2011). "Transit timing variation and activity in the WASP-10 planetary system★". Monthly Notices of the Royal Astronomical Society. 411 (2): 1204–1212. arXiv:1009.4567. Bibcode:2011MNRAS.411.1204M. doi:10.1111/j.1365-2966.2010.17753.x.
- Knutson, Heather A.; Fulton, Benjamin J.; Montet, Benjamin T.; Kao, Melodie; Ngo, Henry; Howard, Andrew W.; Crepp, Justin R.; Hinkley, Sasha; Bakos, Gaspar Á.; Batygin, Konstantin; Johnson, John Asher; Morton, Timothy D.; Muirhead, Philip S. (2014). "Friends of Hot Jupiters. I. A Radial Velocity Search for Massive, Long-Period Companions to Close-In Gas Giant Planets". The Astrophysical Journal. 785 (2): 126. arXiv:1312.2954. Bibcode:2014ApJ...785..126K. doi:10.1088/0004-637X/785/2/126. S2CID 42687848.
External links
- "WASP-10". Exoplanets. Retrieved 2009-05-06.
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