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WASP-10
Observation data; Epoch J2000 Equinox J2000
Constellation	Pegasus
Right ascension	23h 15m 58.3006s
Declination	+31° 27′ 46.296″
Apparent magnitude (V)	12.7
Characteristics
Spectral type	K5
Apparent magnitude (B)	~12.4
Apparent magnitude (R)	~12.03
Apparent magnitude (J)	10.603 ±0.026
Apparent magnitude (H)	10.117 ±0.029
Apparent magnitude (K)	9.983 ±0.018
Variable type	V*(1SWASP)
Astrometry
Proper motion (μ)	RA: 25.050(12) mas/yr ; Dec.: −25.366(11) mas/yr
Parallax (π)	7.0717 ± 0.0135 mas
Distance	461.2 ± 0.9 ly ; (141.4 ± 0.3 pc)
Details
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
	GSC 02752-00114, 2MASS J23155829+3127462, UCAC2 42862442, GSC2 N0013312406, 1SWASP J231558.30+312746.4, USNO-B1.0 1214-00586164, Gaia DR2 1909762228985058944
Database references
SIMBAD	data

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]

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

The WASP-10 planetary system
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	3.06^+0.23 _−0.21 $M$ _J	0.0371^+0.0014 _−0.0013	3.0927616^+0.0000112 _−0.0000182	0.057^+0.011 _−0.005	—	1.08±0.02 $R$ _J
c (unconfirmed)	0.1 M_J	—	5.23 days	—	—	—

WASP-10b

WASP-10b is an extrasolar planet discovered in 2008.^[4]

WASP-10c

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

^ ^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 ^d ^e ^f ^g ^h "SIMBAD query result: GSC 02752-00114 -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-06.
^ ^a ^b 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, Bibcode:2015A&A...577A..90M, 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.
^ The 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.