Planet HD 181720 b

Name HD 181720 b
Discovered in 2009
M × sin i 0.37 MJ
Semi-major axis 1.78 AU
Orbital period 956.0 (± 14.0) day
Eccentricity 0.26 (± 0.06)
ω 177.0 (± 12.0) deg
Tperi 2453631.0 (± 30.0) JD
Radius
Inclination 1.75 ( -1.65 +1.65 ) deg;
Update Jan. 11, 2011
Detection method detected by radial velocity
Molecules detected
Primary transit
Secondary transit
Anomaly angle
Time Vr=0
Calculated temperature
Measured temperature
Hottest point longitute
Surface gravity log(g/gH)
Alternate Names

Remarks

11 Jan 2011: Reffert et al. 2011 give a mass range derived from astrometry 6.1 - 217.9 MJup at the 3 σ level.
The errors on inclination are at the 3 σ level (Reffert et al. 2011)

Star

Name HD 181720
Distance 56.0 (± 4.0) pc
Spectral type G1V
Apparent magnitude V 7.86
Mass 0.92 MSun
Age
Effective temperature 5781.0 (± 18.0) K
Radius
Metallicity [Fe/H] -0.53 (± 0.02)
RA2000 19:22:53.0
Dec2000 -32:55:09
Alternate Names
Planetary system 1 planet

More data


Related publications

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