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Uncommon exoplanet 31 EP

G 268-110 b

RA 16.2237° · Dec -18.1248° · exoplanet

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Score breakdown

· 3 badges
31 pts · Uncommon
Uncommon 34 pts → Rare
  • Earth-sized +16
  • Tidally locked +10
  • Confirmed exoplanet +5
Total score 31

3 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Earth-sized · +16
  • Tidally locked · +10

Trivia

What makes it special

  • Earth-sized. Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.

What it actually is

  • Hugging its star. It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.
  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

Find it in the sky

  • How to spot it. At magnitude 14.7 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around October — that's when to go looking.

Standing on it

  • A year here. A full year lasts just 1.4 Earth days.
  • Eternal day. One side bakes in endless daylight while the other freezes in permanent night, with a ring of perpetual twilight in between.

Properties

density gcc
5.79
diameter km
14414.506
discovery facility
Calar Alto Observatory
discovery method
Radial Velocity
discovery year
2025
eccentricity
0
eq temp k
534
insolation
13.57
mag
14.7
mass earth
1.52
name
G 268-110 b
orbital period days
1.4326
radius earth
1.13
semi major au
0.0128
spect
M5.0 V
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About G 268-110 b

G 268-110 b is an uncommon exoplanet. It shines at apparent magnitude 14.7, has spectral type M5.0 V, has an equilibrium temperature near 534 K and spans roughly 1.13 Earth radii.

Genuinely comparable to Earth in size. Worlds in this narrow band are the ones every next-generation telescope is being pointed at.

How to see it

At apparent magnitude 14.7, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, G 268-110 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 G 268-110 b is an uncommon exoplanet

G 268-110 b scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Earth-sized and Tidally locked — 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.