Planet HD 221420 b

Name HD 221420 b
Planet Status Confirmed
Discovered in 2019
Mass 9.7 (± 1.1) MJ
Mass*sin(i) 9.7 (± 1.1) MJ
Semi-Major Axis
Orbital Period 22482.0 (± 4200.0) day
Eccentricity 0.42 (± 0.07)
ω 164.4 ( -6.3 +6.9 ) deg
Tperi
Radius
Inclination
Update 2019-05-02
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 54.7 ( -3.6 +4.2 ) m/s
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

HD 221420
Name HD 221420
Distance 31.8 pc
Spectral type G2IV-V
Apparent magnitude V 5.8
Mass 1.67 (± 0.11) MSun
Age
Effective temperature 5830.0 K
Radius
Metallicity [Fe/H] 0.29
Detected Disc
Magnetic Field
RA2000 23:33:20.0
Dec2000 -77:23:07
Alternate Names
Planetary system 1 planet

More data


Related publications

Detection of Planetary and Stellar Companions to Neighboring Stars via a Combination of Radial Velocity and Direct Imaging Techniques
2019 KANE S., DALBA P., LI Zh., HORCH E., HIRSCH L. et al.
Astron. J., 157, 252
paper  arxiv