← Back to dex
Uncommon exoplanet 22 EP

GJ 514 b

RA 202.5040° · Dec 10.3725° · exoplanet

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 3 badges
22 pts · Uncommon
Uncommon 34 pts → Rare
  • Nearby (<25 ly) +12
  • Confirmed exoplanet +5
  • Sub-Neptune +5
Total score 22

12 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Nearby (<25 ly) · +12
  • Sub-Neptune · +5

Trivia

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 9.1 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 April — 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. ≈ 436.6 thousand years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 38.8 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

density gcc
2.96
diameter km
27170.706
discovery facility
Multiple Observatories
discovery method
Radial Velocity
discovery year
2022
dist ly
24.8458
eccentricity
0.45
eq temp k
202
host star teff
3728
insolation
0.28
mag
9.05
mass earth
5.2
name
GJ 514 b
orbital period days
140.43
radius earth
2.13
semi major au
0.422
spect
M0.5-1.0 V
sys num planets
1
sys num stars
1

About GJ 514 b

GJ 514 b is an uncommon exoplanet. It lies about 24.8 light-years from Earth, shines at apparent magnitude 9.05, has spectral type M0.5-1.0 V and has an equilibrium temperature near 202 K.

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.

How to see it

At apparent magnitude 9.05, a small backyard telescope will bring it into view.

Like any astronomical target, GJ 514 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 514 b is an uncommon exoplanet

GJ 514 b scores 22 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 12 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Nearby (<25 ly) and Sub-Neptune — 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.