Common exoplanet 23 EP

GJ 508.2 b

RA 200.2444° · Dec 34.2777° · exoplanet

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Score breakdown

· 3 badges

23 pts · Common

Common 24 pts → Uncommon

Long-period world +10
Frozen world +8
Confirmed exoplanet +5

Total score 23

1 more point to reach Uncommon.

Badges

Confirmed exoplanet · +5
Frozen world · +8
Long-period world · +10

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. ≈ 953.6 thousand years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 84.7 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 543 years in a starship at a tenth of light speed.
Distance. 54.3 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1972.

Saying hello

Say hello. A radio message and its reply would take 109 years round-trip.

Standing on it

A year here. A full year lasts about 14.5 Earth years.

By the numbers

Mass. Roughly 588× Earth's mass — about 1.9 Jupiters.
Temperature. A frigid -214°C — colder than dry ice.

How we found it

Discovery. Found by Calar Alto Observatory using the radial velocity method.

Properties

discovery facility: Calar Alto Observatory
discovery method: Radial Velocity
dist ly: 54.2639
eccentricity: 0.27
eq temp k: 59.3
insolation: 0.0025
mass earth: 587.9826
name: GJ 508.2 b
orbital period days: 5300
sys num planets: 1

About GJ 508.2 b

GJ 508.2 b is a common exoplanet. It lies about 54.3 light-years from Earth, has an equilibrium temperature near 59 K, weighs about 587.98 Earth masses and completes an orbit every 5,300 days.

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

How to see it

Like any astronomical target, GJ 508.2 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 508.2 b is a common exoplanet

GJ 508.2 b scores 23 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Frozen world and Long-period world — 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.