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Rare exoplanet 39 EP

TOI-206 b

RA 73.7382° · Dec -62.5219° · exoplanet

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Score breakdown

· 5 badges
39 pts · Rare
Rare 50 pts → Epic
  • Ultra-short period +14
  • Super-Earth +8
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
  • Found by TESS +4
Total score 39

11 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Super-Earth · +8
  • Ultra-short period · +14
  • Found by TESS · +4
  • Orbits a red dwarf · +8

Trivia

Hard to believe

  • A year in a day. Its entire year is over in 17.7 hours. Birthdays here would come round faster than meals.

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 14.9 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • 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. Hopelessly far for any craft humanity can build today.

Properties

density gcc
5.6
diameter km
16583.06
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2022
dist ly
155.7281
eq temp k
910
host star teff
3383
insolation
117.7582
mag
14.938
mass earth
2.24
name
TOI-206 b
orbital period days
0.7363
radius earth
1.3
semi major au
0.0112
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About TOI-206 b

TOI-206 b is a rare exoplanet. It lies about 155.7 light-years from Earth, shines at apparent magnitude 14.94, has an equilibrium temperature near 910 K and spans roughly 1.3 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 14.94, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, TOI-206 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-206 b is a rare exoplanet

TOI-206 b scores 39 points on Spacedle's rarity scale, which places it in the rare tier. Another 11 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Super-Earth, Ultra-short period, 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.