Exoplanet · gas giant
HIP 10090 c
HIP 10090 c is a gas giant orbiting the star HIP 10090. Its year lasts 322 Earth days. It was discovered in 2026 by the Radial Velocity method.
| Host star | HIP 10090 |
|---|---|
| Distance | 268.7 light-years (82.4 pc) |
| Orbital period | 322 days |
| Orbital radius | 0.9 AU |
| Eccentricity | 0.188 |
| Radius | 13.9 R⊕ · 1.24 R♃ |
| Mass | 270 M⊕ · 0.85 M♃ |
| Density | 0.553 g/cm³ |
| Surface gravity | 1.4 × Earth |
| Equilibrium temperature | 338 K (65 °C) |
| Stellar flux received | 1.99 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2026 |
| Discovered by | Multiple Facilities |
Habitable zone
Inside the inner edge of the habitable zone: it receives 1.99 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 0.82° across: 1.5 times the Sun as we see it from Earth.
In the sky
Too faint for the naked eye (magnitude 8.94); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 59° N. South of latitude 59° S it never sets. It stands highest at midnight in October, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1757. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.8 million years.
Planets in the same system
- HIP 10090 b 2,960-day orbit · 13 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.