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Rare exoplanet 49 EP

GJ 896 A b

RA 352.9700° · Dec 19.9370° · exoplanet

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Score breakdown

· 6 badges
49 pts · Rare
Rare 50 pts → Epic
  • Nearby (<25 ly) +12
  • Two suns in its sky +12
  • Frozen world +8
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 49

1 more point to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Nearby (<25 ly) · +12
  • Gas giant · +4
  • Frozen world · +8
  • Orbits a red dwarf · +8
  • 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.

What it actually is

  • 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.

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 10.1 you'll want a small backyard telescope.
  • 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 September — 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. ≈ 358.8 thousand years at Voyager 1's speed (17 km/s).

Properties

density gcc
1.68
diameter km
169657.46
discovery facility
Very Long Baseline Array
discovery method
Astrometry
discovery year
2022
dist ly
20.4181
eccentricity
0.35
eq temp k
126.7
host star teff
3345
inclination
69.2
insolation
0.0429
mag
10.05
mass earth
718.2922
multi star system
yes
name
GJ 896 A b
orbital period days
284.39
radius earth
13.3
semi major au
0.6397
spect
M3.5 V
sys num planets
1
sys num stars
2

About GJ 896 A b

GJ 896 A b is a rare exoplanet. It lies about 20.4 light-years from Earth, shines at apparent magnitude 10.05, has spectral type M3.5 V and has an equilibrium temperature near 127 K.

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

How to see it

At apparent magnitude 10.05, a small backyard telescope will bring it into view.

Like any astronomical target, GJ 896 A 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 896 A b is a rare exoplanet

GJ 896 A b scores 49 points on Spacedle's rarity scale, which places it in the rare tier. Another 1 point would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Nearby (<25 ly), Gas giant, Frozen world, 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.