Exoplanet

Kepler-57 b

Orbiting Kepler-57

Overview

Kepler-57 b is an exoplanet orbiting the star Kepler-57, discovered in 2012 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

3.13

Earth radii

015 R⊕

Mass

25.06

Earth masses

0500 M⊕

Orbital Period

5.7

days

0.1d10,000d

Distance

644.1

parsecs

Nearby10,000 pc

Radius (Earth radii)

3.13

Mass (Earth masses)

25.06

Measured

Equilibrium Temperature

Unknown

Parameter source: Leleu et al. 2023

Orbital Period

5.720days

Planet Mass (Earth masses)

25.06+5.16−4.91

Planet Mass (Jupiter masses)

0.0788+0.0162−0.0154

Eccentricity

0.0162+0.0024−0.0021

Distance from Earth

644.1 pc (~2101 ly)

Spectral Type

Unknown

Temperature

5188 K

Mass (Solar)

0.86 M☉

Radius (Solar)

0.83 R☉

Luminosity

Unknown

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

293.6413°, 44.6571°

Discovery Method

Transit

Discovery Year

2012

Data Sources
NASA Exoplanet Archive

Source ID: Kepler-57 b

System Context

Kepler-57 b orbits Kepler-57 and was reported in 2012 and was detected with the Transit method.

Published measurements list a radius of 3.14 Earth radii, a mass of 25.06 Earth masses, and an orbital period of 5.72 days.

Catalog data places the system at about 644.1 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-57

More planets in this system

Kepler-57 c