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Rare exoplanet 35 EP

GJ 414 A c

RA 167.7745° · Dec 30.4452° · exoplanet

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Score breakdown

· 5 badges
35 pts · Rare
Rare 50 pts → Epic
  • Two suns in its sky +12
  • Frozen world +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 35

15 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • 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

  • It would float. It is less dense than water. Drop it in a big enough ocean and the whole world would bob on the surface.

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 2 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 8.3 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around March — that's when to go looking.

Properties

density gcc
0.499
diameter km
107152.08
discovery facility
W. M. Keck Observatory
discovery method
Radial Velocity
discovery year
2021
dist ly
38.7777
eccentricity
0.105
eq temp k
124.7
host star teff
4120
insolation
0.0607
mag
8.31
mass earth
53.83
multi star system
yes
name
GJ 414 A c
orbital period days
749.83
radius earth
8.4
semi major au
1.4
spect
K7 V
sys num planets
2
sys num stars
2

Nearby objects

About GJ 414 A c

GJ 414 A c is a rare exoplanet. It lies about 38.8 light-years from Earth, shines at apparent magnitude 8.31, has spectral type K7 V and has an equilibrium temperature near 125 K.

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

How to see it

At apparent magnitude 8.31, it is an easy target for binoculars.

Like any astronomical target, GJ 414 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 414 A c is a rare exoplanet

GJ 414 A c scores 35 points on Spacedle's rarity scale, which places it in the rare tier. Another 15 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Frozen 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.