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Rare exoplanet 45 EP

GJ 676 A c

RA 262.5449° · Dec -51.6378° · exoplanet

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Score breakdown

· 6 badges
45 pts · Rare
Rare 50 pts → Epic
  • Two suns in its sky +12
  • Long-period world +10
  • Frozen world +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 45

5 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Long-period world · +10
  • Multi-planet system · +6
  • Two suns in its sky · +12

Trivia

What makes it special

  • Frozen world. A deep-frozen world, too far from its star's warmth for anything to stay liquid.

Hard to believe

  • Denser than iron. It is packed tighter than solid iron — whatever it is made of, it is not ordinary rock.

What it actually is

  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.
  • 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 9.6 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.

Properties

density gcc
12.7
diameter km
156901.26
discovery facility
Paranal Observatory
discovery method
Radial Velocity
discovery year
2016
dist ly
52.2737
eccentricity
0.295
eq temp k
47.96
host star teff
3734
inclination
33.69
insolation
0.001
mag
9.58
mass earth
4288.1409
multi star system
yes
name
GJ 676 A c
orbital period days
13921.423
radius earth
12.3
semi major au
9.726
spect
M0
sys num planets
4
sys num stars
2

About GJ 676 A c

GJ 676 A c is a rare exoplanet. It lies about 52.3 light-years from Earth, shines at apparent magnitude 9.58, has spectral type M0 and has an equilibrium temperature near 48 K.

A deep-frozen world, too far from its star's warmth for anything to stay liquid.

How to see it

At apparent magnitude 9.58, a small backyard telescope will bring it into view.

Like any astronomical target, GJ 676 A 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 676 A c is a rare exoplanet

GJ 676 A c scores 45 points on Spacedle's rarity scale, which places it in the rare tier. Another 5 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Frozen world, Long-period world, Multi-planet system 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.