The GJ 3512 System

2 planets Ursa Major

GJ 3512 is a planetary system in the constellation Ursa Major hosting 2 confirmed exoplanets, about 31 light-years from Earth.

GJ 3512: Star and Habitable Zone

GJ 3512

Spectral type: M5.5 V
Surface temperature: 3,141 K (Sun: 5,772 K)
Mass: 0.12 M☉
Radius: 0.14 R☉

GJ 3512 b → GJ 3512 c →

Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of GJ 3512: 0.034–0.089 AU (conservative: 0.043–0.084 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.

See the full interactive habitable-zone view in the Exoplanet Explorer app ›

All 2 Planets in the GJ 3512 System

Planet	Type	Orbit	Radius	ESI	Discovered
GJ 3512 b	Cold Gas Giant	203 d	—	0.08	2019
GJ 3512 c	Cold Gas Giant	2,354 d	—	0.09	2020

Discovery History

The first planet found here, GJ 3512 b, was discovered in 2019 using the radial velocity method. The most recent addition, GJ 3512 c, followed in 2020.

2019 — GJ 3512 b (Radial Velocity)
2020 — GJ 3512 c (Radial Velocity)

Frequently Asked Questions About GJ 3512

How many planets does GJ 3512 have?

GJ 3512 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the GJ 3512 system habitable?

None of the known planets in GJ 3512 orbit within the star's habitable zone.

How far away is GJ 3512?

GJ 3512 is about 31 light-years from Earth in the constellation Ursa Major.

Explore the GJ 3512 system in the app

Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.