The GJ 3293 System

4 planets 2 in habitable zone Eridanus

GJ 3293 is a planetary system in the constellation Eridanus hosting 4 confirmed exoplanets, about 66 light-years from Earth. 2 of its planets orbit within the habitable zone, where liquid water could exist on a planetary surface.

GJ 3293: Star and Habitable Zone

GJ 3293

Spectral type: M2.5
Surface temperature: 3,466 K (Sun: 5,772 K)
Mass: 0.42 M☉
Radius: 0.40 R☉
Luminosity: 0.0220 L☉

GJ 3293 b GJ 3293 c GJ 3293 d GJ 3293 e

Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of GJ 3293: 0.121–0.315 AU (conservative: 0.154–0.299 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.

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All 4 Planets in the GJ 3293 System

Planet	Type	Orbit	Radius	ESI	Discovered
GJ 3293 b HZ	Neptune-like	31 d	—	0.52	2015
GJ 3293 c	Neptune-like	123 d	—	0.31	2015
GJ 3293 d HZ	Super Earth	48 d	—	0.63	2017
GJ 3293 e	Super Earth	13 d	—	0.58	2017

Discovery History

The first planet found here, GJ 3293 b, was discovered in 2015 using the radial velocity method. The most recent addition, GJ 3293 e, followed in 2017.

2015 — GJ 3293 b (Radial Velocity)
2015 — GJ 3293 c (Radial Velocity)
2017 — GJ 3293 d (Radial Velocity)
2017 — GJ 3293 e (Radial Velocity)

Frequently Asked Questions About GJ 3293

How many planets does GJ 3293 have?

GJ 3293 has 4 confirmed exoplanets. More may await discovery.

Are any planets in the GJ 3293 system habitable?

2 planets in the system orbit within the habitable zone, where liquid water could exist. Actual habitability depends on atmospheres and composition, which are not yet known.

How far away is GJ 3293?

GJ 3293 is about 66 light-years from Earth in the constellation Eridanus.

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