Planet HD 202206 c

Detailed information about planet HD 202206 c and its parameters.

Planet

Name
HD 202206 c
Planet Status
Confirmed
Discovered in
2004
Publication
Status
—
Update
2026-07-06
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
Angular distance
0.055028 arcsec
ω
Tperi
Radius
—
Inclination
Detection Method
Radial Velocity
Mass Meas. Method
Astrometry
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

No remarks

Stars

Initially reported as brown dwarf + exoplanet host, HD 202206 was revisited as a binary system with an inner very low-mass red dwarf companion and an outer circumbinary planet straddling the H-D burning limit (Benedict & Harrison 2017).
A new stability analysis by Cao et al. (2026) instead favours former orbital solution with two coplanar substellar companions, an inner brown dwarf and an outer gas giant planet.

Papers with primary data:

Name
HD 202206 B
Distance
45.54 ( ± 0.25 ) pc
Spectral type
M6V
Apparent magnitude V
—
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
Age
—
Effective temperature
—
Radius
—
Metallicity [Fe/H]
—
Detected Disc
—
Magnetic Field
—
RA2000
21:14:57.8
Dec2000
-20:47:21.2
Alternate Names
—

No remarks

No link