Planet HAT-P-11 b

Name HAT-P-11 b
Discovered in 2009
Mass 0.0824340056005 (± 0.00899852122204) MJ
Semi-major axis 0.053 ( -0.0008 +0.0008 ) AU
Orbital period 4.887804 (± 4e-06) day
Eccentricity 0.198 (± 0.046)
ω 355.2 (± 17.3) deg
Tperi
Radius 0.421983088559 (± 1.33821275442) RJ
Inclination 88.5 (± 0.6) deg;
Update Nov. 5, 2013
Detection Method Primary Transit
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit 2454605.89132 (± 0.00032) JD
Secondary transit
Anomaly angle
impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitute
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Observability Predictor

Star

Name HAT-P-11
Distance 38.0 (± 1.3) pc
Spectral type K4
Apparent magnitude V 9.59
Mass 0.81 ( -0.03 +0.03 ) MSun
Age 6.5 ( -4.1 +4.1 ) Gyr
Effective temperature 4780.0 (± 50.0) K
Radius 0.75 (± 0.02) RSun
Metallicity [Fe/H] 0.31 (± 0.05)
Detected Disc
Magnetic Field
RA2000 19:50:50.0
Dec2000 +48:04:51
Alternate Names
Planetary system 1 planet

Remarks

Alias GSC 03561-02092
Alias 2MASS 19505021+4804508

More data


Related publications

Water vapour absorption in the clear atmosphere of a Neptune-sized exoplanet
2014 FRAINE J., DEMING D., BENNEKE B., KNUTSON H., JORDAN A. et al.
Nature, 513, 526
paper  arxiv  

Understanding the Mass-Radius Relation for Sub-Neptunes: Radius as a Proxy for Composition
2013 LOPEZ E. & FORTNEY J.
ApJ, 792, 1
arxiv   paper  

HAT-P-11b: A Super-Neptune Planet Transiting a Bright K Star in the Kepler Field
2010 BAKOS G., TORRES G., PAL A., HARTMAN J., KOVACS Ge., NOYES R., LATHAM D., SASSELOV D., SIPOCZ B., ESQUERDO G., FISCHER D., JOHNSON J., MARCY G., BUTLER P., ISACSON H., HOWARD A., VOGT S., KOVACS Ga., FERNANDEZ J., MOOR A., STEFANIK R., LAZAR J., PAPP I. & SARI P.
ApJ., 710, 1724
paper

Follow-up Observations of the Neptune Mass Transiting Extrasolar Planet Hat-P-11b
2009 DITTMAN J., CLOSE L., GREEN E., SCUDERI L. & MALES J.
ApJ. Letters, 699, L48
paper

Planets in Spin-Orbit Misalignment and the Search for Stellar Companions
2014 ADDISON B., TINNEY Ch., WRIGHT D., SALTER G., BAYLISS D. & ZHOU G.
in "13th annual Australian Space Science Conference"
arxiv