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Uncommon exoplanet 33 EP

TOI-5716 b

RA 201.9008° · Dec 73.1774° · exoplanet

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Score breakdown

· 4 badges
33 pts · Uncommon
Uncommon 34 pts → Rare
  • Earth-sized +16
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
  • Found by TESS +4
Total score 33

1 more point to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Earth-sized · +16
  • Found by TESS · +4
  • Orbits a red dwarf · +8

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. 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 15.8 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around April — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Properties

density gcc
5.22
diameter km
12245.952
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2025
dist ly
128.5453
eq temp k
400
host star teff
3436
inclination
89.4
insolation
3.4093
mag
15.83
mass earth
0.84
name
TOI-5716 b
orbital period days
6.7663
radius earth
0.96
sys num planets
1
sys num stars
1

About TOI-5716 b

TOI-5716 b is an uncommon exoplanet. It lies about 128.5 light-years from Earth, shines at apparent magnitude 15.83, has an equilibrium temperature near 400 K and spans roughly 0.96 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 15.83, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, TOI-5716 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-5716 b is an uncommon exoplanet

TOI-5716 b scores 33 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 1 point would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Earth-sized, 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.