Planet AS 209 b

Detailed information about planet AS 209 b and its parameters.

Planet

Name
AS 209 b
Planet Status
Confirmed
Discovered in
2022
Publication
Status
Published in a refereed paper
Update
2025-09-07
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
Angular distance
ω
Tperi
Radius
Inclination
Detection Method
Imaging
Mass Meas. Method
Spectrum
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
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

Bae et al. (2022): A circumplanetary disk is detected around the source located 200 AUs away from protostar AS 209. The gas mass is estimated to be equal or greater than 30 ME adopting a standard 13CO abundance, whereas the dust fraction is about 0.027 ME.

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