Exoplanet · mini-Neptune
HIP 113103 c
HIP 113103 c is a mini-Neptune orbiting the star HIP 113103. Its year lasts 14.2 Earth days. It was discovered in 2023 by the Transit method.
| Host star | HIP 113103 |
|---|---|
| Distance | 150.7 light-years (46.2 pc) |
| Orbital period | 14.2 days |
| Orbital radius | 0.105 AU |
| Eccentricity | 0.170 |
| Radius | 2.4 R⊕ · 0.214 R♃ |
| Mass | 6.35 M⊕ · 0.02 M♃ (estimated from the radius) |
| Density | 2.52 g/cm³ |
| Equilibrium temperature | 585 K (312 °C) |
| Stellar flux received | 180 × Earth |
| Discovery method | Transit |
| Discovery year | 2023 |
| Discovered by | Transiting Exoplanet Survey Satellite (TESS) |
Habitable zone
Inside the inner edge of the habitable zone: it receives 180 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 3.8° across: 7.1 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 9.95. Visible from the whole Southern Hemisphere and north to latitude 47° N. South of latitude 47° 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 1875. 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
- HIP 113103 b 7.61-day orbit · 1.83 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.