Exoplanet
Kepler-257 c
Orbiting Kepler-257
Overview
Kepler-257 c is an exoplanet orbiting the star Kepler-257, discovered in 2014 using the Transit method. It is a Neptune-sized world.
Key Measurements
Radius
5.41
Earth radii
015 R⊕
Mass (est.)
26.85
Earth masses
0500 M⊕
Orbital Period
6.6
days
0.1d10,000d
Distance
780.3
parsecs
Nearby10,000 pc
Radius (Earth radii)
5.41
Mass (Earth masses)
26.85
Estimated
Equilibrium Temperature
Unknown
Orbital Period
6.58 days
Distance from Earth
780.3 pc (~2545 ly)
Spectral Type
Unknown
Temperature
5180 K
Mass (Solar)
Unknown
Radius (Solar)
1.04 R☉
Luminosity
Unknown
Planets in System
3
Stars in System
1
Coordinates (RA, Dec)
297.3160°, 46.0233°
Discovery Method
Transit
Discovery Year
2014
Data Sources
Source ID: Kepler-257 c