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Rare exoplanet 39 EP

TIC 231949697 b

RA 94.2577° · Dec -43.3662° · 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 21.8 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. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.

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 13.2 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. Hopelessly far for any craft humanity can build today.

Properties

density gcc
4.54
diameter km
19495.5371
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2026
dist ly
163.8634
eq temp k
982.91
host star teff
3451.32
inclination
80.0693
insolation
154.97
mag
13.188
mass earth
2.95
name
TIC 231949697 b
orbital period days
0.9072
radius earth
1.5283
sys num planets
1
sys num stars
1

About TIC 231949697 b

TIC 231949697 b is a rare exoplanet. It lies about 163.9 light-years from Earth, shines at apparent magnitude 13.19, has an equilibrium temperature near 983 K and spans roughly 1.53 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 13.19, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, TIC 231949697 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 TIC 231949697 b is a rare exoplanet

TIC 231949697 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.