WASP-10

Last updated
WASP-10
Observation data
Epoch J2000       Equinox J2000
Constellation Pegasus [1]
Right ascension 23h 15m 58.3006s [2]
Declination +31° 27′ 46.296″ [2]
Apparent magnitude  (V)12.7 [3]
Characteristics
Spectral type K5V [4]
Apparent magnitude  (B)~12.4 [5]
Apparent magnitude  (R)~12.03 [5]
Apparent magnitude  (J)10.603 ±0.026 [5]
Apparent magnitude  (H)10.117 ±0.029 [5]
Apparent magnitude  (K)9.983 ±0.018 [5]
Variable type planetary transit
Astrometry
Radial velocity (Rv)−12.08±0.65 [2] km/s
Proper motion (μ)RA: 25.050(12) mas/yr [2]
Dec.: −25.366(11) mas/yr [2]
Parallax (π)7.0717±0.0135  mas [2]
Distance 461.2 ± 0.9  ly
(141.4 ± 0.3  pc)
Details [6]
Mass 0.752±0.081  M☉
Radius 0.703±0.036  R☉
Temperature 4680±100  K
Metallicity 0.03±0.20
Rotation 11.91±0.05  d
Rotational velocity (v sin i)3.0±3.0 km/s
Age 7.0+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 [5]
Database references
SIMBAD data
Exoplanet Archive data

WASP-10 is a star 461 light-years away in the constellation Pegasus. It hosts a transiting planet discovered by the SuperWASP project. [3]

Contents

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. [7]

Planetary system

WASP-10 hosts one confirmed exoplanet, WASP-10b. It is a hot Jupiter discovered in 2008. [3]

A candidate second planet with a 5-day period, WASP-10c, was inferred from transit-timing variations of WASP-10b in 2010, [8] but this was refuted in 2013. [9] Instead, there may be a super-Jupiter planet or brown dwarf on a wide (at least 5 AU) orbit, based on radial velocity observations. [10]

The WASP-10 planetary system [6] [10]
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 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.
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