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Rare exoplanet 36 EP

TOI-2338 b

RA 81.3446° · Dec -34.6682° · exoplanet

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Score breakdown

· 6 badges
36 pts · Rare
Rare 50 pts → Epic
  • Eccentric orbit +9
  • Orbits a Sun-like star +8
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Gas giant +4
  • Found by TESS +4
Total score 36

14 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4
  • Eccentric orbit · +9
  • Found by TESS · +4
  • Orbits a Sun-like star · +8

Trivia

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.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 12.5 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 December — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 18 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
7.42
diameter km
142983.9996
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2023
dist ly
1024.1168
eccentricity
0.676
eq temp k
799
host star teff
5581
inclination
89.52
insolation
13.8485
mag
12.483
mass earth
1900.6139
name
TOI-2338 b
orbital period days
22.654
radius earth
11.209
semi major au
0.158
sys num planets
1
sys num stars
1

About TOI-2338 b

TOI-2338 b is a rare exoplanet. It lies about 1,024.1 light-years from Earth, shines at apparent magnitude 12.48, has an equilibrium temperature near 799 K and spans roughly 11.21 Earth radii.

It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.

How to see it

At apparent magnitude 12.48, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, TOI-2338 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 TOI-2338 b is a rare exoplanet

TOI-2338 b scores 36 points on Spacedle's rarity scale, which places it in the rare tier. Another 14 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant, Eccentric orbit, Found by TESS and Orbits a Sun-like star — 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.