Exoplanet

Kepler-391 c

Orbiting Kepler-391

Overview

Kepler-391 c is an exoplanet orbiting the star Kepler-391, discovered in 2014 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

2.88

Earth radii

015 R⊕

Mass

450.00

Earth masses

0500 M⊕

Orbital Period

20.5

days

0.1d10,000d

Distance

869.2

parsecs

Nearby10,000 pc

Equilibrium Temp

662

K

150 K3,500 K

Radius (Earth radii)

2.88

Mass (Earth masses)

450.00

Measured

Equilibrium Temperature

662 K

Orbital Period

20.50 days

Distance from Earth

869.2 pc (~2835 ly)

Spectral Type

K2 III-IV

Temperature

5038 K

Mass (Solar)

1.27 M☉

Radius (Solar)

2.88 R☉

Luminosity

0.66 log L☉

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

290.6219°, 51.0573°

Discovery Method

Transit

Discovery Year

2014

Data Sources

Source ID: Kepler-391 c

System Context

Kepler-391 c orbits Kepler-391 and was reported in 2014 and was detected with the Transit method.

Published measurements list a radius of 2.88 Earth radii, a mass of 450 Earth masses, an orbital period of 20.5 days, and an equilibrium temperature near 662 K.

Catalog data places the system at about 869.2 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-391

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