Exoplanet · gas giant
KOI-134 c
KOI-134 c is a gas giant orbiting the star KOI-134. Its year lasts 34 Earth days. It was discovered in 2025 by the Transit Timing Variations method.
| Host star | KOI-134 |
|---|---|
| Distance | 3,781 light-years (1,159 pc) |
| Orbital period | 34 days |
| Orbital radius | 0.231 AU |
| Eccentricity | 0.240 |
| Radius | 9.86 R⊕ · 0.88 R♃ |
| Mass | 69.9 M⊕ · 0.22 M♃ |
| Density | 0.401 g/cm³ |
| Surface gravity | 0.719 × Earth |
| Equilibrium temperature | 799 K (526 °C) |
| Stellar flux received | 79.1 × Earth |
| Discovery method | Transit Timing Variations |
| Discovery year | 2025 |
| Discovered by | Kepler |
Habitable zone
Inside the inner edge of the habitable zone: it receives 79.1 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 3.9° across: 7.2 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 13.77. Visible from the whole Northern Hemisphere and south to latitude 45° S. North of latitude 45° N it never sets. It stands highest at midnight in July, the best time to observe it.
Light's journey
The light you see tonight set out around 1756 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 67 million years.
Planets in the same system
- KOI-134 b 67.1-day orbit · 12 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.