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Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Aquarius[1]
Right ascension 23h 12m 37.75s[1]
Declination −22° 40′  6.1″[1]
Apparent magnitude (V) 11.9[2]
Spectral type G8
Apparent magnitude (B) ~12.9[3]
Apparent magnitude (R) ~11.9[3]
Apparent magnitude (J) 10.769 ±0.026[3]
Apparent magnitude (H) 10.445 ±0.025[3]
Apparent magnitude (K) 10.325 ±0.025[3]
Proper motion (μ) RA: -21.9 ±4.0[3] mas/yr
Dec.: -34.5 ±3.1[3] mas/yr
Distance 1000 ly
(307 pc)
Mass 0.88 +0.05-0.08 M
Radius 0.870 +0.025-0.036 R
Temperature 5500 K
Age 3 ±1.4 billion years
Other designations
DENIS-P J231237.7-224025, 2MASS J23123773-2240261, UCAC2 22823425[3]
Database references
Extrasolar Planets

WASP-6 is a type-G yellow dwarf star located about 1000 light-years away in the Aquarius constellation. Dim at magnitude 12, it is visible through a moderate sized amateur telescope. The star is about 80% of the size and mass of the Sun and it is a little cooler.[3]

Planetary system[edit]

The SuperWASP project announced that this star has an extrasolar planet, WASP-6b, in 2008. This object was detected by the astronomical transit method.[2]

The WASP-6 planetary system
(in order from star)
Mass Semimajor axis
Orbital period
Eccentricity Inclination Radius
WASP-6b 0.503 (+0.019-0.038) MJ 0.0421 (−0.0013+0.0008) 3.3610060 (+0.0000022-0.0000035) 0.054 (−0.015+0.018)

See also[edit]


  1. ^ a b c "Exoplanet Transit Database". 
  2. ^ a b Gillon; Anderson, D. R.; Triaud, A. H. M. J.; Hellier, C.; Maxted, P. F. L.; Pollaco, D.; Queloz, D.; Smalley, B.; et al. (2009). "Discovery and characterization of WASP-6b, an inflated sub-Jupiter mass planet transiting a solar-type star". Astronomy and Astrophysics. 501 (2): 785–792. arXiv:0901.4705Freely accessible. Bibcode:2009A&A...501..785G. doi:10.1051/0004-6361/200911749. 
  3. ^ a b c d e f g h i "DENIS-P J231237.7-224025 -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-08-20. 

External links[edit]

Coordinates: Sky map 23h 12m 37s, −22° 40′ 06″