Uncommon exoplanet 29 EP

GJ 896 A b

RA 352.9700° · Dec 19.9370° · exoplanet

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Score breakdown

· 4 badges

29 pts · Uncommon

Uncommon 33 pts → Rare

Nearby (<25 ly) +12
Frozen world +8
Confirmed exoplanet +5
Gas giant +4

Total score 29

4 more points to reach Rare.

Badges

Confirmed exoplanet · +5
Gas giant · +4
Frozen world · +8
Nearby (<25 ly) · +12

Trivia

What makes it special

Frozen world. A deep-frozen world far from its star's warmth.

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).
Fastest probe ever. ≈ 31.9 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 204 years in a starship at a tenth of light speed.
Distance. 20.4 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 2006.

Saying hello

Say hello. A radio message and its reply would take 40.8 years round-trip.

Standing on it

A year here. A full year lasts just 284 Earth days.

By the numbers

Size. About 13.3× the width of Earth.
Volume. About 2353 Earths could fit inside it.
Mass. Roughly 718× Earth's mass — about 2.3 Jupiters.
Your weight. You'd weigh about 4.1× your Earth weight standing here.
Temperature. A frigid -146°C — colder than dry ice.

How we found it

Discovery. Found by Very Long Baseline Array using the astrometry method.

Properties

density gcc: 1.68
discovery facility: Very Long Baseline Array
discovery method: Astrometry
dist ly: 20.4181
eccentricity: 0.35
eq temp k: 126.7
insolation: 0.0429
mass earth: 718.2922
name: GJ 896 A b
orbital period days: 284.39
radius earth: 13.3
sys num planets: 1

About GJ 896 A b

GJ 896 A b is an uncommon exoplanet. It lies about 20.4 light-years from Earth, has an equilibrium temperature near 127 K, spans roughly 13.3 Earth radii and weighs about 718.29 Earth masses.

A deep-frozen world far from its star's warmth.

How to see it

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 an uncommon exoplanet

GJ 896 A b scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 4 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Gas giant, Frozen world and Nearby (<25 ly) — 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.