Star

GJ 357

M-type star

Overview

GJ 357 is a host star of spectral class M with 3 known exoplanets. It is located approximately 31 light-years from Earth.

Key Measurements

Planets

3

012+

Spectral Class

M

Distance

9.4

pc

Nearby10,000 pc

Temperature

3505

K

2,000 K40,000 K

V Magnitude

10.91

Spectral Type

M2.5 V

Temperature

3505 K

Mass (Solar)

0.34 M☉

Radius (Solar)

0.34 R☉

Luminosity

-1.80 log L☉

Metallicity [Fe/H]

-0.12

Age

Unknown

Known Planets

3

Stars in System

1

Planets (NASA)

3

Distance

9.4 pc (~31 ly)

V Magnitude

10.91

K Magnitude

6.47

Coordinates (RA, Dec)

144.0075°, -21.6651°

Planets in this System(3 known)
GJ 357 b

GJ 357

Radius

1.20Earth radii

Mass (est.)

1.87Earth masses

Orbital Period

3.9days

Distance

9.4parsecs

Discovered 2019

Exoplanet
GJ 357 c

GJ 357

Orbital Period

9.1days

Distance

9.4parsecs

Equilibrium Temp

401K

Discovered 2019

Exoplanet
GJ 357 d

GJ 357

Orbital Period

55.7days

Distance

9.4parsecs

Equilibrium Temp

220K

Discovered 2019

Exoplanet
Data Sources
NASA Exoplanet Archive

Source ID: GJ 357