Planet K2-22 b

Detailed information about planet K2-22 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
K2-22 b
Planet Status
Confirmed
Discovered in
2015
Publication
Status
Published in a refereed paper
Update
2021-02-05
Mass
1.4 ( +0.0 -1.4 ) MJ
Mass*sin(i)
—
Semi-Major Axis
0.0088 ( ± 0.0008 ) AU
Orbital Period
0.381078 ( +1e-06 -1e-06 ) day
Eccentricity
—
Angular distance
—
ω
—
Tperi
—
Radius
0.223 ( +0.036 -0.036 ) RJ
Inclination
—
Detection Method
Primary Transit
Mass Meas. Method
—
Radius Meas. Method
Primary Transit
Primary transit
2456811.1216 ( ± 2.4e-05 ) JD
Secondary transit
—
λ
—
Impact Parameter b
0.65 ( +0.08 -0.13 )
Time Vr=0
—
Velocity Semiamplitude K
280.0 ( +280.0 -0.0 ) m/s
Calculated temperature
2100.0 K
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
K2-22 b, 2MASS J11175587+0237086 b, EPIC 201637175 A b, EPIC 201637175 b, EPIC 201637175.01, K2-22 A b, WISE J111755.84+023708.4 b
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference
Na
Measurements Detected 2019 - GAIDOS E.

20 Apr 2015: The transit light curve depth gives only an upper limit for the planet radius because the, according to Sanchis-Ojeda et al. (2015), the planet is surrounded by a cometary-like tail and a head.

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Star

Name
K2-22
Distance
245.53 ( +2.81 -2.81 ) pc
Spectral type
M0 V
Apparent magnitude V
17.0
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
0.6 ( ± 0.07 ) MSun
Age
—
Effective temperature
3830.0 ( ± 100.0 ) K
Radius
0.57 ( ± 0.06 ) RSun
Metallicity [Fe/H]
0.03 ( ± 0.08 )
Detected Disc
—
Magnetic Field
—
RA2000
11:17:55.9
Dec2000
+02:37:08.7
Alternate Names
EPIC 201637175, K2-22, 2MASS J11175587+0237086, EPIC 201637175 A, K2-22 A, WISE J111755.84+023708.4

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