Planet WASP-8 b

Name WASP-8 b
Planet Status Confirmed
Discovered in 2008
Mass 2.244 ( -0.093 +0.079 ) MJ
Mass*sin(i)
Semi-Major Axis 0.0801 ( -0.0016 +0.0016 ) AU
Orbital Period 8.158715 ( -1.5e-05 +1.5e-05 ) JD
Eccentricity 0.31 ( -0.0024 +0.0024 )
ω 274.27 ( -0.18 +0.18 ) deg
Tperi
Radius 1.038 ( -0.047 +0.007 ) RJ
Inclination 88.55 ( -0.17 +0.17 ) deg
Update 2014-08-16
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method
Molecules
Primary transit 2454679.33394 ( -0.00043 +0.00043 ) JD
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

WASP-8
Name WASP-8
Distance 87.0 (± 7.0) pc
Spectral type G6
Apparent magnitude V 9.9
Mass 1.033 ( -0.05 +0.05 ) MSun
Age 4.0 (± 1.0) Gyr
Effective temperature 5600.0 (± 80.0) K
Radius 0.953 ( -0.058 +0.058 ) RSun
Metallicity [Fe/H] 0.17 (± 0.07)
Detected Disc
Magnetic Field
RA2000 23:59:36.0
Dec2000 -35:01:53
Alternate Names
Planetary system 1 planet

Remarks

Alias TYC2 7522-505-1)

Other web-pages

15 Apr 2010: The parent star is in a triple system with a K1III star (HD 224664) at 142'' (component B) and a M star at 4.83'' (component C) (Queloz et al. 2010).

More data


Related publications

High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). I. Lucky imaging observations of 101 systems in the southern hemisphere
2016 EVANS D., SOUTHWORTH J., MAXTED P., SKOTTFELT J., HUNERTMARK M. et al.
Astron. & Astrophys., 589, A58
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Energy-limited escape revised. The transition from strong planetary winds to stable thermospheres
2016 SALZ M., SCHNEIDER P., CZESLA S. & SCHMITT J.
Astron. & Astrophys., 585, L2
paper   arxiv   ADS  

Refined architecture of the WASP-8 system: a cautionary tale for traditional Rossiter-McLaughlin analysis
2016 BOURRIER V., CEGLA M., LOVIS Ch. & WYTTENBACH A.
Astron. & Astrophy., in press
paper  arxiv  

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in "13th annual Australian Space Science Conference"
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2014 HANSEN C., SHWARTZ J. & COWAN N.
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2014 KNUTSON H., FULTON B., MONTET B., KAO M., NGO H. & 8 additional authors
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2012 PLAVALOVA E.
Astrobiology, 12, 361
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Extrasolar planets in stellar multiple systems.
2012 ROELL T., SEIFAHRT A., NEUHÄUSER R., & MUGRAUER M.
Astron. & Astrophys., 542, A92
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2012 HOLLIS M., BALAN S., LEVER G. & LAHAV O.
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ApJ., 757, Issue 1, id. 6, 21 pp.
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2012 ENOCH B., COLLIER CAMERON A. & HORNE K.
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2010 DONNISON J.
MNRAS, 406, 1918
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Tidal Evolution of Close-in Planets
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ApJ., 725, 1995
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ApJ.
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2010 LANZA A.
Astron. & Astrophys., 512, A77
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WASP-8b: a retrograde transiting planet in a multiple system
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Astron. & Astrophys.
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