Planet HD 220842 Ab

Detailed information about planet HD 220842 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HD 220842 Ab
Planet Status
Confirmed
Discovered in
2016
Update
2024-08-04
Mass
3.18 ( +0.15 -0.15 ) MJ
Mass*sin(i)
3.18 ( +0.15 -0.15 ) MJ
Semi-Major Axis
0.74 ( ± 0.018 ) AU
Orbital Period
218.47 ( ± 0.19 ) day
Eccentricity
0.404 ( ± 0.009 )
ω
225.1 ( ± 1.7 ) deg
Tperi
2456624.8 ( ± 0.8 ) JD
Radius
—
Inclination
—
Detection Method
Radial Velocity
Mass Meas. Method
—
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
108.1 ( ± 1.2 ) m/s
Calculated temperature
—
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
HD 220842 b
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
HD 220842 A
Distance
64.6498 ( ± 0.16735 ) pc
Spectral type
G0IV-V
Apparent magnitude V
7.99
Mass
1.13 MSun
Age
—
Effective temperature
5921.14 ( ± 149.615 ) K
Radius
1.431 ( ± 0.08 ) RSun
Metallicity [Fe/H]
-0.237 ( ± 0.04 )
Detected Disc
—
Magnetic Field
—
RA2000
23:26:37.0
Dec2000
+56:53:12.0
Alternate Names
HD 220842

An M dwarf companion star lies 341 AUs away.

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