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Epic exoplanet 66 EP

GJ 667 C b

RA 259.7511° · Dec -34.9978° · exoplanet

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Score breakdown

· 7 badges
66 pts · Epic
Epic 78 pts → Anomaly
  • Richly packed system +14
  • Nearby (<25 ly) +12
  • Two suns in its sky +12
  • Tidally locked +10
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
  • Sub-Neptune +5
Total score 66

12 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Nearby (<25 ly) · +12
  • Sub-Neptune · +5
  • Tidally locked · +10
  • Richly packed system · +14
  • Orbits a red dwarf · +8
  • Two suns in its sky · +12

Trivia

What it actually is

  • Hugging its star. It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.
  • What it is made of. Too light to be solid rock and too heavy to be all gas: most likely a deep global ocean or a thick steamy envelope over a rocky core.
  • Crowded system. One of at least 5 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 10.6 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 June — that's when to go looking.

Could we get there?

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

Properties

density gcc
2.74
diameter km
28701.45
discovery facility
La Silla Observatory
discovery method
Radial Velocity
discovery year
2012
dist ly
23.6266
eccentricity
0.2
host star teff
3350
insolation
5.3902
mag
10.602
mass earth
5.68
multi star system
yes
name
GJ 667 C b
orbital period days
7.203
radius earth
2.25
semi major au
0.0504
spect
M1.5 V
sys num planets
5
sys num stars
3
tidally locked
yes
tidally locked inferred
yes

About GJ 667 C b

GJ 667 C b is an epic exoplanet. It lies about 23.6 light-years from Earth, shines at apparent magnitude 10.6, has spectral type M1.5 V and spans roughly 2.25 Earth radii.

It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.

How to see it

At apparent magnitude 10.6, a small backyard telescope will bring it into view.

Like any astronomical target, GJ 667 C b 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 667 C b is an epic exoplanet

GJ 667 C b scores 66 points on Spacedle's rarity scale, which places it in the epic tier. Another 12 points would lift it into a rarer tier.

That score comes from 7 science badges — Confirmed exoplanet, Nearby (<25 ly), Sub-Neptune, Tidally locked, Richly packed system, Orbits a red dwarf and Two suns in its sky — 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.