Exoplanet · mini-Neptune
TOI-4633 c
TOI-4633 c is a mini-Neptune orbiting the star TOI-4633. Its year lasts 272 Earth days. It was discovered in 2024 by the Transit method.
| Host star | TOI-4633 |
|---|---|
| Distance | 310.5 light-years (95.2 pc) |
| Orbital period | 272 days |
| Orbital radius | 0.847 AU |
| Eccentricity | 0.117 |
| Radius | 3.2 R⊕ · 0.285 R♃ |
| Mass | 123 M⊕ · 0.387 M♃ |
| Surface gravity | 12 × Earth |
| Equilibrium temperature | 269 K (-5 °C) |
| Stellar flux received | 1.56 × Earth |
| Discovery method | Transit |
| Discovery year | 2024 |
| Discovered by | Transiting Exoplanet Survey Satellite (TESS) |
Habitable zone
At the edge of the habitable zone (within the optimistic limits): liquid water would be possible only with a favourable atmosphere.
Its star in the sky
In the planet's sky its star is a disc 0.66° across: 1.2 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 9.10. Visible from the whole Northern Hemisphere and south to latitude 28° S. North of latitude 28° N it never sets. It stands highest at midnight in June, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1715. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.5 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.