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  1. Home
  2. Exoplanets
  3. Kepler-57 b
Exoplanet

Kepler-57 b

Host star: Kepler-57Discovered: 2012
TransitKepler

Distance from Earth: 644.1 parsecs (2,100.9 light years)

Discovery Method: Transit

The transit method detects planets by measuring the periodic dimming of a star's brightness as a planet passes in front of it. NASA's Kepler and TESS missions have used this technique to discover the majority of known exoplanets. The depth of the brightness dip reveals the planet's size relative to its star, while the period between transits gives the orbital period.

Physical Properties

Radius

3.14 R⊕

19,973 km

Mass

25.06 M⊕

1.50E26 kg

Orbital Period

5.72 days

0.016 years

Eq. Temperature

Unknown

Orbital Semi-major Axis

Unknown

Density

4.47 g/cm³

Compared to Earth

Radius

Kepler-57 b3.14 R\u2295
Earth1.00 R\u2295

3.14x Earth

Mass

Kepler-57 b25.06 M\u2295
Earth1.00 M\u2295

25.06x Earth

Orbital Period

Kepler-57 b5.72 days
Earth365.25 days

0.016x Earth

Star System: Kepler-57

Star Temperature

5,188 K

Star Radius

0.83 R☉

Star Mass

0.86 M☉

Planets in System

2

Stars in System

1

Habitability Assessment

Rocky Planet Size

3.14 Earth radii suggests a non-rocky composition.

Habitable Zone

This planet orbits outside the estimated habitable zone of its star.

Habitability assessments are rough estimates based on limited available data. True habitability depends on many additional factors including atmospheric composition, magnetic field presence, tidal locking, and stellar activity. These assessments should not be considered definitive.

Exoplanet ExplorerNASA Archive

All Exoplanets

Solar System

The Sun

Glossary

ISS Tracker

Eccentricity

0.0162

Insolation Flux

Unknown

Earth flux = 1.0