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Uncommon exoplanet 25 EP

TOI-2285 b

RA 332.5633° · Dec 58.7061° · exoplanet

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Score breakdown

· 4 badges
25 pts · Uncommon
Uncommon 34 pts → Rare
  • Super-Earth +8
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
  • Found by TESS +4
Total score 25

9 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Super-Earth · +8
  • Found by TESS · +4
  • Orbits a red dwarf · +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.

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 13.4 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • 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 August — 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. ≈ 2.4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 216 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

diameter km
22578.474
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2021
dist ly
138.3195
eccentricity
0.3
eq temp k
358
host star teff
3491
inclination
89.66
insolation
3.91
mag
13.403
mass earth
19.5
name
TOI-2285 b
orbital period days
13.6351
radius earth
1.77
semi major au
0.1363
sys num planets
1
sys num stars
1

About TOI-2285 b

TOI-2285 b is an uncommon exoplanet. It lies about 138.3 light-years from Earth, shines at apparent magnitude 13.4, has an equilibrium temperature near 358 K and spans roughly 1.77 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 13.4, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, TOI-2285 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-2285 b is an uncommon exoplanet

TOI-2285 b scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Super-Earth, Found by TESS and Orbits a red dwarf — 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.