Planet 72 Peg Bb

Detailed information about planet 72 Peg Bb and its parameters.

Planet

Name
72 Peg Bb
Planet Status
Confirmed
Discovered in
2010
Update
2024-06-28
Mass
Mass*sin(i)
Semi-Major Axis
3.46 AU
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Detection Method
Astrometry
Mass Meas. Method
Radius Meas. 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
HD 221673 Bb
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

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Star

Name
72 Peg B
Distance
Spectral type
K5III
Apparent magnitude V
5.95
Mass
Age
Effective temperature
Radius
37.6 RSun
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000
23:33:57.2
Dec2000
+31:19:31.0
Alternate Names
HD 221673 B, ADS 16836 B, BU 720 B

72 Pegasi is a nearly equal-mass long-period binary system (P ∼ 800 y, e = 0.322, i = 21.7°) made of two K giant stars. The substellar component detected through astrometry orbits the secondary star.

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