About TOI-4633 c
TOI-4633 c is a rare exoplanet. It lies about 310.5 light-years from Earth, shines at apparent magnitude 9.02, has spectral type G V and has an equilibrium temperature near 269 K.
About 3.2× the width of Earth.
Rare exoplanet 34 EP
TOI-4633 c
RA 256.8431° · Dec 62.4755° · exoplanet
Score breakdown
· 5 badgesRare 50 pts → Epic
- Two suns in its sky +12
- Orbits a Sun-like star +8
- Confirmed exoplanet +5
- Sub-Neptune +5
- Found by TESS +4
Total score 34
16 more points to reach Epic.
Badges
- Confirmed exoplanet · +5
- Sub-Neptune · +5
- Found by TESS · +4
- Orbits a Sun-like star · +8
- Two suns in its sky · +12
Trivia
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 9 you'll want a small backyard telescope.
- 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 June — 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. ≈ 5.5 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 484.8 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 3105 years in a starship at a tenth of light speed.
Properties
- diameter km
- 40819.84
- discovery facility
- Transiting Exoplanet Survey Satellite (TESS)
- discovery method
- Transit
- discovery year
- 2024
- dist ly
- 310.5057
- eccentricity
- 0.117
- eq temp k
- 268.57
- host star teff
- 5800
- inclination
- 89.888
- insolation
- 1.56
- mag
- 9.017
- mass earth
- 123
- multi star system
- yes
- name
- TOI-4633 c
- orbital period days
- 271.9445
- radius earth
- 3.2
- semi major au
- 0.847
- spect
- G V
- sys num planets
- 1
- sys num stars
- 2
How to see it
At apparent magnitude 9.02, a small backyard telescope will bring it into view.
Like any astronomical target, TOI-4633 c 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-4633 c is a rare exoplanet
TOI-4633 c scores 34 points on Spacedle's rarity scale, which places it in the rare tier. Another 16 points would lift it into a rarer tier.
That score comes from 5 science badges — Confirmed exoplanet, Sub-Neptune, Found by TESS, Orbits a Sun-like star and Two suns in its sky — 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.