Planet K2-202 Ab

Detailed information about planet K2-202 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
K2-202 Ab
Planet Status
Confirmed
Discovered in
2018
Publication
Status
Published in a refereed paper
Update
2025-09-04
Mass
—
Mass*sin(i)
—
Semi-Major Axis
—
Orbital Period
3.405164 ( +0.000126 -0.000121 ) day
Eccentricity
—
Angular distance
—
ω
—
Tperi
—
Radius
0.205 ( +0.016 -0.012 ) RJ
Inclination
87.672 ( +1.628 -2.945 ) deg
Detection Method
Primary Transit
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
2MASS J18530342-2224252 b, EPIC 216405287 b, EPIC 216405287.01, WISE J185303.43-222425.3 b
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

1 Sep 2025: See also Planets in Binaries webpage.

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Star

Name
K2-202 A
Distance
300.397 ( +2.65 -2.6 ) pc
Spectral type
G7V
Apparent magnitude V
—
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
0.97 ( +0.03 -0.03 ) MSun
Age
—
Effective temperature
5406.0 ( +140.3 -140.9 ) K
Radius
0.91 ( +0.05 -0.03 ) RSun
Metallicity [Fe/H]
0.27 ( +0.08 -0.08 )
Detected Disc
—
Magnetic Field
—
RA2000
18:53:03.4
Dec2000
-22:24:25.3
Alternate Names
2MASS J18530342-2224252, EPIC 216405287, WISE J185303.43-222425.3

Eeles-Nolle & Armstrong (2025): A faint companion star, likely a low-mass M dwarf (Gaia DR3 4078733009961984384, G = 19.28), lies 21.08 arcseconds away (6,390 AUs at 303 pc).

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