Exoplanet · mini-Neptune
TIC 77319217 b
TIC 77319217 b is a mini-Neptune orbiting the star TIC 77319217. Its year lasts 7.55 Earth days. It was discovered in 2026 by the Transit method.
| Host star | TIC 77319217 |
|---|---|
| Distance | 872.9 light-years (267.6 pc) |
| Orbital period | 7.55 days |
| Radius | 3.11 R⊕ · 0.277 R♃ |
| Mass | 9.85 M⊕ · 0.031 M♃ (estimated from the radius) |
| Density | 1.8 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 11.56. Visible from the whole Southern Hemisphere and north to latitude 50° N. South of latitude 50° S it never sets. It stands highest at midnight in November, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1153. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 15 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.