Exoplanet · mini-Neptune
TOI-2015 c
TOI-2015 c is a mini-Neptune orbiting the star TOI-2015. Its year lasts 5.58 Earth days. It was discovered in 2025 by the Transit Timing Variations method.
| Host star | TOI-2015 |
|---|---|
| Distance | 154.4 light-years (47.3 pc) |
| Orbital period | 5.58 days |
| Orbital radius | 0.0412 AU |
| Eccentricity | 0.000 |
| Radius | 2.93 R⊕ · 0.261 R♃ |
| Mass | 8.91 M⊕ · 0.028 M♃ |
| Density | 1.95 g/cm³ |
| Surface gravity | 1.04 × Earth |
| Equilibrium temperature | 448 K (175 °C) |
| Stellar flux received | 6.68 × Earth |
| Discovery method | Transit Timing Variations |
| Discovery year | 2025 |
| Discovered by | Multiple Observatories |
Habitable zone
Inside the inner edge of the habitable zone: it receives 6.68 times the light the Earth does, too hot to keep liquid water on its surface.
Its star in the sky
In the planet's sky its star is a disc 4.2° across: 7.9 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 15.61. Visible from the whole Northern Hemisphere and south to latitude 63° S. North of latitude 63° N it never sets. It stands highest at midnight in May, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1872. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.7 million years.
Planets in the same system
- TOI-2015 b 3.35-day orbit · 3.31 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.