Exoplanet

Kepler-309 c

Orbiting Kepler-309

Overview

Kepler-309 c is an exoplanet orbiting the star Kepler-309, discovered in 2014 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

2.51

Earth radii

015 R⊕

Mass (est.)

7.29

Earth masses

0500 M⊕

Orbital Period

105.4

days

0.1d10,000d

Distance

544.6

parsecs

Nearby10,000 pc

Radius (Earth radii)

2.51

Mass (Earth masses)

7.29

Estimated

Equilibrium Temperature

Unknown

Parameter source: Rowe et al. 2014

Orbital Period

105.356+0.001−0.001days

Semi-Major Axis

0.4010au

Distance from Earth

544.6 pc (~1776 ly)

Spectral Type

Unknown

Temperature

4713 K

Mass (Solar)

Unknown

Radius (Solar)

0.72 R☉

Luminosity

Unknown

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

297.5099°, 46.9614°

Discovery Method

Transit

Discovery Year

2014

Data Sources
NASA Exoplanet Archive

Source ID: Kepler-309 c

System Context

Kepler-309 c orbits Kepler-309 and was reported in 2014 and was detected with the Transit method.

Published measurements list a radius of 2.51 Earth radii, a mass of 7.29 Earth masses (estimated), and an orbital period of 105.36 days.

Catalog data places the system at about 544.6 parsecs from Earth 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-309

More planets in this system

Kepler-309 b
Kepler-309 c