Exoplanet

K2-140 b

Orbiting K2-140

Overview

K2-140 b is an exoplanet orbiting the star K2-140, discovered in 2017 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

13.56

Earth radii

015 R⊕

Mass

295.58

Earth masses

0500 M⊕

Orbital Period

6.6

days

0.1d10,000d

Distance

347.9

parsecs

Nearby10,000 pc

Equilibrium Temp

962

K

150 K3,500 K

Radius (Earth radii)

13.56

Mass (Earth masses)

295.58

Measured

Equilibrium Temperature

962 K

Parameter source: Korth et al. 2019

Orbital Period

6.569+0.000−0.000days

Semi-Major Axis

0.0680+0.0010−0.0010au

Planet Mass (Earth masses)

295.58+12.71−12.71

Planet Mass (Jupiter masses)

0.9300+0.0400−0.0400

Eccentricity

0.0000

Argument of Periastron

90.0deg

Radial Velocity Semi-Amplitude

104.10+2.70−2.70m/s

Distance from Earth

347.9 pc (~1135 ly)

Spectral Type

G6 V

Temperature

5585 K

Mass (Solar)

0.96 M☉

Radius (Solar)

1.06 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

188.1373°, -9.6076°

Discovery Method

Transit

Discovery Year

2017

Data Sources
NASA Exoplanet Archive

Source ID: K2-140 b

System Context

K2-140 b orbits K2-140 and was reported in 2017 and was detected with the Transit method.

Published measurements list a radius of 13.56 Earth radii, a mass of 295.58 Earth masses, an orbital period of 6.57 days, and an equilibrium temperature near 962 K.

Catalog data places the system at about 347.9 parsecs from Earth, a host star classified as G6 V, and 1 known planet in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open K2-140