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Rare exoplanet 38 EP

TOI-763 b

RA 194.4681° · Dec -39.7581° · exoplanet

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Score breakdown

· 6 badges
38 pts · Rare
Rare 50 pts → Epic
  • Tidally locked +10
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by TESS +4
Total score 38

12 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Tidally locked · +10
  • Multi-planet system · +6
  • 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. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.
  • Crowded system. One of at least 2 planets orbiting its star.

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 10.3 you'll want a small backyard telescope.
  • 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 April — that's when to go looking.

Could we get there?

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

Properties

density gcc
4.51
diameter km
29084.136
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2020
dist ly
310.2637
eccentricity
0.04
eq temp k
1038
host star teff
5450
inclination
87.9551
insolation
182.935
mag
10.265
mass earth
9.79
name
TOI-763 b
orbital period days
5.6057
radius earth
2.28
semi major au
0.06
spect
G
sys num planets
2
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About TOI-763 b

TOI-763 b is a rare exoplanet. It lies about 310.3 light-years from Earth, shines at apparent magnitude 10.27, has spectral type G and has an equilibrium temperature near 1,038 K.

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 10.27, a small backyard telescope will bring it into view.

Like any astronomical target, TOI-763 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-763 b is a rare exoplanet

TOI-763 b scores 38 points on Spacedle's rarity scale, which places it in the rare tier. Another 12 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Sub-Neptune, Tidally locked, Multi-planet system, 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.