Exoplanet

GJ 1148 c

Orbiting GJ 1148

Overview

GJ 1148 c is an exoplanet orbiting the star GJ 1148, discovered in 2017 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

68.06

Earth masses

0500 M⊕

Orbital Period

532.6

days

0.1d10,000d

Distance

11.0

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

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

68.06

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Trifonov et al. 2018

Orbital Period

532.580+4.1402.520days

Semi-Major Axis

0.9120+0.00500.0020au

M sin(i) (Earth masses)

68.06+4.912.19

M sin(i) (Jupiter masses)

0.2141+0.01540.0069

Eccentricity

0.3420+0.05000.0620

Argument of Periastron

210.4+12.09.1deg

Radial Velocity Semi-Amplitude

11.34+0.790.36m/s

Distance from Earth

11.0 pc (~36 ly)

Spectral Type

Unknown

Temperature

3287 K

Mass (Solar)

0.34 M☉

Radius (Solar)

0.36 R☉

Luminosity

-1.87 log L☉

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

175.4326°, 42.7516°

Discovery Method

Radial Velocity

Discovery Year

2017

Data Sources

Source ID: GJ 1148 c

System Context

GJ 1148 c orbits GJ 1148 and was reported in 2017 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 68.06 Earth masses (M sin i) and an orbital period of 532.58 days.

Catalog data places the system at about 11 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 GJ 1148

More planets in this system

GJ 1148 c