Exoplanet · mini-Neptune
TIC 117642575 b
TIC 117642575 b is a mini-Neptune orbiting the star TIC 117642575. Its year lasts 4.94 Earth days. It was discovered in 2026 by the Transit method.
| Host star | TIC 117642575 |
|---|---|
| Distance | 615.7 light-years (188.8 pc) |
| Orbital period | 4.94 days |
| Radius | 2.83 R⊕ · 0.252 R♃ |
| Mass | 8.38 M⊕ · 0.0264 M♃ (estimated from the radius) |
| Density | 2.04 g/cm³ |
| Discovery method | Transit |
| Discovery year | 2026 |
| Discovered by | Transiting Exoplanet Survey Satellite (TESS) |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.12. Visible from the whole Southern Hemisphere and north to latitude 53° N. South of latitude 53° S it never sets. It stands highest at midnight in September, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1410. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.