Planet K2-266 Ad

Detailed information about planet K2-266 Ad and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
K2-266 Ad
Planet Status
Confirmed
Discovered in
2018
Publication
Status
—
Update
2024-06-11
Mass
0.028 ( +0.01793 -0.01196 ) MJ
Mass*sin(i)
0.02958 ( +0.00912 -0.00629 ) MJ
Semi-Major Axis
0.1035 ( +0.0016 -0.0017 ) AU
Orbital Period
14.697 ( +0.00034 -0.00035 ) day
Eccentricity
0.047 ( +0.043 -0.032 )
Angular distance
—
ω
87.0 ( +62.0 -62.0 ) deg
Tperi
2457944.8 ( +2.3 -2.3 ) JD
Radius
0.261 ( +0.012 -0.011 ) RJ
Inclination
89.46 ( +0.32 -0.25 ) deg
Detection Method
Primary Transit
Mass Meas. Method
—
Radius Meas. Method
Primary Transit
Primary transit
2457944.8393 ( ± 0.0012 ) JD
Secondary transit
—
λ
—
Impact Parameter b
0.29 ( +0.12 -0.17 )
Time Vr=0
—
Velocity Semiamplitude K
3.17 ( +0.99 -0.69 ) m/s
Calculated temperature
538.0 ( +7.0 -6.0 ) K
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
2MASS J10314450+0056152 d, EPIC 248435473 A d, EPIC 248435473 d, K2-266 A d, WISE J103144.54+005614.5 d
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
K2-266 A
Distance
77.5586 ( +0.3581 -0.3549 ) pc
Spectral type
K7V
Apparent magnitude V
—
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
0.68 ( +0.0679 -0.094 ) MSun
Age
8.4 ( +4.1 -4.8 ) Gyr
Effective temperature
4362.0 ( +110.463 -137.357 ) K
Radius
0.7337 ( +0.0678 -0.0572 ) RSun
Metallicity [Fe/H]
-0.12 ( +0.4 -0.42 )
Detected Disc
—
Magnetic Field
—
RA2000
10:31:44.5
Dec2000
+00:56:15.3
Alternate Names
EPIC 248435473, WISE J103144.54+005614.5, EPIC 248435473 A, TIC 374180079, 2MASS J10314450+0056152

K2-266 forms a widely separated (a = 3316 AUs) binary system with a late K to early M dwarf companion (Mugrauer 2019).

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