WASP-3

WASP-3
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lyra
Right ascension 18h 34m 31.6241s[1]
Declination +35° 39′ 41.488″[1]
Apparent magnitude (V) 10.63[2]
Characteristics
Spectral type F7V[3]
Apparent magnitude (B) 11.07[2]
Apparent magnitude (J) 9.603±0.020[3]
Apparent magnitude (H) 9.407±0.014[3]
Apparent magnitude (K) 9.361±0.015[3]
Variable type EP[3]
Astrometry
Proper motion (μ) RA: −4.896±1.058[1] mas/yr
Dec.: −21.664±0.686[1] mas/yr
Parallax (π)4.07 ± 0.32 mas[1]
Distance800 ± 60 ly
(250 ± 20 pc)
Details
Mass1.24+0.11
−0.06 M☉
Radius1.31+0.12
−0.06 R☉
Temperature6400 ± 100 K
Metallicity0 (±0.2)
Other designations
TYC 2636-195-1, 2MASS J18343163+3539415, USNO-B1.0 1256-00285133, GSC 02636-00195, 1SWASP J183431.62+353941.4, V838 Lyr, 2MASS J18343163+3539415
Database references
SIMBADdata

WASP-3 is a magnitude 10 yellow-white dwarf star located about 800 light-years away in the Lyra constellation.[3] It appears to be variable; it "passed from a less active (log R'_hk=-4.95) to a more active (log R'_hk=-4.8) state between 2007 and 2010".[4]

  1. ^ a b c d e Cite error: The named reference Gaia2016 was invoked but never defined (see the help page).
  2. ^ a b Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862.
  3. ^ a b c d e f "TYC 2636-195-1". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-05-04.
  4. ^ M Montalto; Gregorio, J.; Boue, G.; Mortier, A.; Boisse, I.; Oshagh, M.; Maturi, M.; Figueira, P.; Sousa, S.; Santos, N. C. (Nov 2, 2012). "A new analysis of the WASP-3 system: no evidence for an additional companion". MNRAS. 427 (4): 2757. arXiv:1211.0218. Bibcode:2012MNRAS.427.2757M. doi:10.1111/j.1365-2966.2012.21926.x. S2CID 59381004.