WASP-12

WASP-12
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Auriga[1]
Right ascension 06h 30m 32.7966s[2]
Declination +29° 40′ 20.264″[2]
Apparent magnitude (V) 11.560±0.068[3]
Characteristics
Spectral type G0V or F[citation needed]
Apparent magnitude (B) 12.138±0.019[3]
Apparent magnitude (R) ~11.6[4]
Apparent magnitude (J) 10.477±0.021[5]
Apparent magnitude (H) 10.228±0.022[5]
Apparent magnitude (K) 10.188±0.020[5]
Astrometry
Proper motion (μ) RA: −1.519(19) mas/yr[2]
Dec.: −6.761(15) mas/yr[2]
Parallax (π)2.4213 ± 0.0166 mas[2]
Distance1,347 ± 9 ly
(413 ± 3 pc)
Details
Mass1.434+0.11
−0.09[6] M☉
Radius1.657+0.046
−0.044[6] R☉
Luminosity4.05+0.54
−0.53[6] L☉
Temperature6360+130
−140[6] K
Metallicity+0.33+0.14
−0.17[6]
Other designations
TYC 1891-1178-1, 2MASS J06303279+2940202, UCAC2 42216354, Gaia DR2 3435282862461427072[4]
Database references
SIMBADdata

WASP-12 is a magnitude 11 yellow dwarf star located approximately 1347 light-years away[2] in the constellation Auriga.[4] WASP-12 has a mass and radius similar to the Sun and is known for being orbited by a planet that is extremely hot and has a retrograde orbit around WASP-12. WASP-12 forms a triple star system with two red dwarf companions. Both of them have spectral types of M3V and are only 38% and 37% as massive as the Sun, respectively.[7]

  1. ^ Cite error: The named reference Roman1987 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference APASS DR9 was invoked but never defined (see the help page).
  4. ^ a b c "SIMBAD query result: WASP-12 -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-04-24.
  5. ^ a b c Cite error: The named reference Skrutskie2006 was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference Collins et al.(2015) was invoked but never defined (see the help page).
  7. ^ Bechter, Eric B.; Crepp, Justin R.; Ngo, Henry; Knutson, Heather A.; Batygin, Konstantin; Hinkley, Sasha; Muirhead, Philip S.; Johnson, John Asher; Howard, Andrew W.; Montet, Benjamin T.; Matthews, Christopher T.; Morton, Timothy D. (2014). "WASP-12b AND HAT-P-8b ARE MEMBERS OF TRIPLE STAR SYSTEMS". The Astrophysical Journal. 788 (1): 2. arXiv:1307.6857. Bibcode:2014ApJ...788....2B. doi:10.1088/0004-637X/788/1/2. S2CID 36306243.