Exoplanet · Earth-sized rocky planet
G 261-6 b
G 261-6 b is a Earth-sized rocky planet orbiting the star G 261-6. Its year lasts 5.45 Earth days. It was discovered in 2025 by the Radial Velocity method.
| Host star | G 261-6 |
|---|---|
| Distance | 34.7 light-years (10.6 pc) |
| Orbital period | 5.45 days |
| Orbital radius | 0.0297 AU |
| Eccentricity | 0.000 |
| Radius | 1.1 R⊕ · 0.0981 R♃ |
| Mass (minimum) | 1.37 M⊕ · 0.00431 M♃ |
| Density | 5.66 g/cm³ |
| Equilibrium temperature | 322 K (49 °C) |
| Stellar flux received | 1.8 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2025 |
| Discovered by | Calar Alto Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 1.8 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 2.7° across: 5.2 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 15.37. Visible from the whole Northern Hemisphere and south to latitude 14° S. North of latitude 14° N it never sets.
Light's journey
The light you see tonight set out around the year 1991. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 615 thousand years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.