Planet K2-353 Ab

Detailed information about planet K2-353 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
K2-353 Ab
Mass
—
Mass*sin(i)
—
Semi-Major Axis
0.116 ( ± 0.000914 ) AU
Orbital Period
15.466805 ( +0.000572 -0.000565 ) day
Eccentricity
—
ω
—
Tperi
—
Radius
0.4951 ( +0.0196 -0.018 ) RJ
Inclination
—
Primary transit
2458189.851818 ( +0.000977 -0.000988 ) JD
Secondary transit
—
λ
—
Impact Parameter b
0.77 ( ± 0.02 )
Time Vr=0
—
Velocity Semiamplitude K
—
Calculated temperature
735.0 ( +13.0 -14.0 ) K
Measured temperature
—
Hottest point longitude
—
Surface gravity log(g/gH)
—
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

See also Planets in Binaries webpage.

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Star

Name
K2-353 A
Distance
268.515 ( +3.729 -3.629 ) pc
Spectral type
G3V
Apparent magnitude V
12.28
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
0.87 ( ± 0.02 ) MSun
Age
—
Effective temperature
5698.0 ( ± 55.0 ) K
Radius
0.99 ( ± 0.03 ) RSun
Metallicity [Fe/H]
-0.21 ( ± 0.04 )
Detected Disc
—
Magnetic Field
—
RA2000
13:26:28.1
Dec2000
-02:16:54.8
Alternate Names
EPIC 251554286

Eeles-Nolle & Armstrong (2025): A faint companion, likely an M dwarf (Gaia DR3 3638010850751062528, G = 18.68), lies 28.75 arcseconds away (7,720 AUs at 268 pc).

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