← Back to dex
Uncommon exoplanet 23 EP

GJ 3293 c

RA 67.1484° · Dec -25.1713° · exoplanet

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 4 badges
23 pts · Uncommon
Uncommon 34 pts → Rare
  • Orbits a red dwarf +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Neptune-like +4
Total score 23

11 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Neptune-like · +4
  • Multi-planet system · +6
  • Orbits a red dwarf · +8

Trivia

What it actually is

  • What it is made of. Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.
  • Crowded system. One of at least 4 planets orbiting its star.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 11.9 you'll want a small backyard telescope.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around November — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 1.2 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
1
diameter km
62122.694
discovery facility
La Silla Observatory
discovery method
Radial Velocity
discovery year
2015
dist ly
65.8519
eccentricity
0.11
eq temp k
176.62
host star teff
3466
insolation
0.17
mag
11.945
mass earth
21.09
name
GJ 3293 c
orbital period days
122.6196
radius earth
4.87
semi major au
0.3618
spect
M2.5
sys num planets
4
sys num stars
1

About GJ 3293 c

GJ 3293 c is an uncommon exoplanet. It lies about 65.9 light-years from Earth, shines at apparent magnitude 11.95, has spectral type M2.5 and has an equilibrium temperature near 177 K.

Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.

How to see it

At apparent magnitude 11.95, a small backyard telescope will bring it into view.

Like any astronomical target, GJ 3293 c is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.

Why GJ 3293 c is an uncommon exoplanet

GJ 3293 c scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Neptune-like, Multi-planet system and Orbits a red dwarf — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.