Kepler-278 b
Orbiting Kepler-278
Kepler-278 b is an exoplanet orbiting the star Kepler-278, discovered in 2014 using the Transit method. It is a Mini-Neptune world.
Radius
3.96
Earth radii
Mass
56.00
Earth masses
Orbital Period
30.2
days
Distance
443.0
parsecs
Equilibrium Temp
586
K
Radius (Earth radii)
3.96
Mass (Earth masses)
56.00
Measured
Equilibrium Temperature
586 K
Parameter source: Jofré et al. 2020
Orbital Period
30.156+0.004−0.002days
Semi-Major Axis
0.2020+0.0050−0.0050au
Planet Mass (Earth masses)
56.00+37.00−13.00
Planet Mass (Jupiter masses)
0.1762+0.1164−0.0409
Eccentricity
0.6960+0.0170−0.0260
Argument of Periastron
21.1+7.7−7.7deg
Radial Velocity Semi-Amplitude
14.00+21.00−4.70m/s
Distance from Earth
443.0 pc (~1445 ly)
Spectral Type
K2 III-IV
Temperature
4965 K
Mass (Solar)
1.23 M☉
Radius (Solar)
2.86 R☉
Luminosity
0.65 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
290.1072°, 38.7023°
Discovery Method
Transit
Discovery Year
2014
Source ID: Kepler-278 b
Kepler-278 b orbits Kepler-278 and was reported in 2014 and was detected with the Transit method.
Published measurements list a radius of 3.96 Earth radii, a mass of 56 Earth masses, an orbital period of 30.16 days, and an equilibrium temperature near 586 K.
Catalog data places the system at about 443 parsecs from Earth, a host star classified as K2 III-IV, and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open Kepler-278More planets in this system