Planet gamma Cephei b

Detailed information about planet gamma Cephei b and its parameters.

Planet

Name
gamma Cephei b
Planet Status
Confirmed
Discovered in
2003
Mass
17.539 MJ
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Update
2022-09-07
Detection Method
Radial Velocity
Mass Detection Method
Radial Velocity
Radius Detection Method
Primary transit
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
gam Cephei b
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

11 Jan 2011: Reffert et al. 2011 give a mass range derived from astrometry 5.0 - 26.9 MJup at the 3 σ level .
The errors on inclination are at the 3 σ level (Reffert et al. 2011)
27 September 02: The star is part of a binary system with period 70 yrs ± 16 yrs, with an eccentricity of 0.439 ± 0.06 (Cochran et al 2002).

Star

15 Nov. 06: Binary star companion at 1.467 arc sec; orbital period 67.5 ± 1.4 yr and an orbit inclination 119 ± deg.(Neuhäuser et al 200T)

No link