WASP-10

WASP-10
Observation data
Epoch J2000      Equinox ICRS
Constellation Pegasus
Right ascension 23h 15m 58.3006s
Declination +31° 27′ 46.296″
Apparent magnitude (V) 12.7
Characteristics
Evolutionary stage main sequence
Spectral type K5V
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 planetary transit
Astrometry
Radial velocity (Rv)−12.08±0.65 km/s
Proper motion (μ) RA: 25.050(12) mas/yr
Dec.: −25.366(11) mas/yr
Parallax (π)7.0717±0.0135 mas
Distance461.2 ± 0.9 ly
(141.4 ± 0.3 pc)
Details
Mass0.752±0.081 M☉
Radius0.703±0.036 R☉
Temperature4680±100 K
Metallicity0.03±0.20
Rotation11.91±0.05 d
Rotational velocity (v sin i)3.0±3.0 km/s
Age7.0+6.0
−3.0 Gyr
Other designations
TOI-5970, TIC 431701493, WASP-10, GSC 02752-00114, 2MASS J23155829+3127462, UCAC2 42862442, GSC2 N0013312406, 1SWASP J231558.30+312746.4, USNO-B1.0 1214-00586164
Database references
SIMBADdata
Exoplanet Archivedata

WASP-10 is a star 461 light-years away in the constellation Pegasus. It hosts a transiting planet discovered by the SuperWASP project.

The star is likely older than the Sun, has a fraction of heavy elements close to the solar abundance, and is rotating rapidly, being spun up by the tides raised by the giant planet on a close orbit.

Planetary system

WASP-10 hosts one confirmed exoplanet, WASP-10b. It is a hot Jupiter discovered in 2008.

A candidate second planet with a 5-day period, WASP-10c, was inferred from transit-timing variations of WASP-10b in 2010, but this was refuted in 2013. Instead, there may be a super-Jupiter planet or brown dwarf on a wide (at least 5 AU) orbit, based on radial velocity observations.

The WASP-10 planetary system
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination
(°)		 Radius
b 3.21+0.23
−0.24 MJ		 0.0378+0.0013
−0.0014		 3.09272932(32) 0.0601+0.0064
−0.0046		 88.81±0.40 1.067±0.064 RJ
c (unconfirmed) 4–90 MJ 5–30 — — — —

References

  1. ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
  2. 1 2 3 4 5 6 7 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.
  3. 1 2 3 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.
  4. ↑ Faedi, F.; Staley, T.; et al. (August 2013). "Lucky imaging of transiting planet host stars with LuckyCam". Monthly Notices of the Royal Astronomical Society. 433 (3): 2097–2106. arXiv:1305.3795. Bibcode:2013MNRAS.433.2097F. doi:10.1093/mnras/stt885.
  5. 1 2 3 4 5 6 "SIMBAD query result: GSC 02752-00114 -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-06.
  6. 1 2 Bonomo, A. S.; Desidera, S.; et al. (June 2017). "The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics. 602: A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID 118923163.
  7. ↑ 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
  8. ↑ 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.
  9. ↑ Barros, S. C. C.; Boué, G.; et al. (April 2013). "Transit timing variations in WASP-10b induced by stellar activity". Monthly Notices of the Royal Astronomical Society. 430 (4): 3032–3047. arXiv:1301.3760. Bibcode:2013MNRAS.430.3032B. doi:10.1093/mnras/stt111.
  10. 1 2 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.