Exoplanet

K2-111 c

Orbiting K2-111

Overview

K2-111 c is an exoplanet orbiting the star K2-111, discovered in 2020 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

11.10

Earth masses

0500 M⊕

Orbital Period

15.7

days

0.1d10,000d

Distance

200.4

parsecs

Nearby10,000 pc

Equilibrium Temp

923

K

150 K3,500 K

Radius (Earth radii)

Unknown

Minimum Mass, M sin(i) (Earth masses)

11.10

Radial-velocity minimum

Equilibrium Temperature

923 K

Parameter source: Palethorpe et al. 2026

Orbital Period

15.675+0.0060.006days

Semi-Major Axis

0.1157+0.00090.0009au

M sin(i) (Earth masses)

11.10+1.101.00

M sin(i) (Jupiter masses)

0.0349+0.00350.0031

Eccentricity

0.0690+0.07200.0490

Radial Velocity Semi-Amplitude

3.19+0.300.30m/s

Distance from Earth

200.4 pc (~654 ly)

Spectral Type

G2

Temperature

5775 K

Mass (Solar)

0.84 M☉

Radius (Solar)

1.25 R☉

Luminosity

Unknown

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

59.8903°, 21.2985°

Discovery Method

Radial Velocity

Discovery Year

2020

Data Sources

Source ID: K2-111 c

System Context

K2-111 c orbits K2-111 and was reported in 2020 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 11.1 Earth masses (M sin i), an orbital period of 15.67 days, and an equilibrium temperature near 923 K.

Catalog data places the system at about 200.4 parsecs from Earth, a host star classified as G2, 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 K2-111

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