Terrestrial planet · GJ 1061

GJ 1061 d

ExoplanetsDiscovered 2020

Scientific overview

GJ 1061 d is a terrestrial planet orbiting GJ 1061, completing an orbit every 13 days, about 12 light-years from Earth. It was discovered in 2020 using the radial velocity method.

Host star

GJ 1061

Spectral type

M5.5 V

Temperature

2,953 K

Mass

0.12 M☉

Planetary system — GJ 1061 system

View the GJ 1061 system (3 known planets).

Planet	Class	Radius (R⊕)	Period (d)	Distance (ly)
GJ 1061 bRadial Velocity · 2020	Terrestrial planet	1.04	3.2073	12
GJ 1061 cRadial Velocity · 2020	Terrestrial planet	1.19	6.6821	12
GJ 1061 dRadial Velocity · 2020	Terrestrial planet	1.16	13.066	12

Discovery and detection

Detection method

Radial Velocity Method

Discovery year

2020

Discovered at

La Silla Observatory

Knowledge connections

OrbitsGJ 1061
Member of systemGJ 1061 system
Discovered by methodRadial Velocity Method
Discovered atLa Silla Observatory
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Terrestrial planet
Host star: GJ 1061
Discovery method: Radial Velocity Method
Discovery year: 2020
Orbital period: 13.066 d
Semi-major axis: 0.054 AU
Eccentricity: 0.04
Radius: 1.16 R⊕
Mass: 1.67 M⊕
Density: 5.90 g/cm³ · derived
Equilibrium temp.: 242 K
Insolation: 0.6 S⊕
Distance: 12 ly

Density is derived from the archive mass and radius via ρ = M / (4⁄3·π·r³); all other values are catalogued measurements.

Derived values

Computed from source-backed inputs via standard formulae — not observations. Every input and constant is traced below.

Bulk density5.90 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 1.67 M⊕ · NASA
- radiusEarth = 1.16 R⊕ · NASA
Assumptions: M⊕ = 5.972e+24 kg, R⊕ = 6371000 m (IAU 2015 B3 nominal); Assumes a uniform sphere.
Limitations: Withheld above 30 g/cm³ (inconsistent mass/radius inputs).; Archive mass/radius carry no propagated uncertainty here.
Uncertainty: not propagated (inputs carry no catalogued uncertainty)
Computed as of 2026-06-29.

Quality & authority

Partial

Unreviewed

Description: Complete
Source coverage: Partial
Relationship coverage: Complete
Review coverage: None
Citation coverage: None
Image coverage: Not applicable

Data from the NASA Exoplanet Archive. See source quality.