Planet K2-257 b

Detailed information about planet K2-257 b and its parameters.

Planet

Name
K2-257 b
Planet Status
Confirmed
Discovered in
2018
Update
2021-02-05
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
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 J12330683-0157113 b, EPIC 228974324 b, EPIC 228974324.01, WISE J123306.80-015711.7 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
K2-257
Distance
64.1 ( +0.3 -0.3 ) pc
Spectral type
Apparent magnitude V
Mass
0.52 ( +0.01 -0.01 ) MSun
Age
Effective temperature
3725.0 ( +80.0 -46.0 ) K
Radius
0.5 ( +0.01 -0.01 ) RSun
Metallicity [Fe/H]
-0.03 ( +0.17 -0.18 )
Detected Disc
Magnetic Field
RA2000
12:33:06.8
Dec2000
-01:57:11.4
Alternate Names
2MASS J12330683-0157113, EPIC 228974324, WISE J123306.80-015711.7

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