Wolf 1061 c is a fascinating “Super-Earth” located approximately 14 light-years away in the constellation Ophiuchus. It is part of a three-planet system orbiting a stable red dwarf star.
Key Physical Characteristics
- Planet Type: Terrestrial (rocky) Super-Earth.
- Mass: It is at least 4.3 times the mass of Earth, making it significantly larger and heavier.
- Orbit: It orbits its star every 17.9 Earth days.
- The Star: Wolf 1061 is an M-type red dwarf. It is much older than our Sun and relatively “quiet,” meaning it doesn’t produce as many dangerous flares as Proxima Centauri.
Habitability & Environment
In Lisa Kaltenegger’s research, Wolf 1061 c is noted for sitting near the inner edge of the habitable zone:
- Incident Light: It receives about 1.1 to 1.3 times the starlight that Earth gets. This puts it in a “warm” state, somewhere between the climate of Earth and Venus.
- Gravity: Because it is a massive Super-Earth, the surface gravity would be much stronger than ours. You would feel roughly 1.6 times heavier standing on its surface.
- Atmosphere: Scientists are particularly interested in whether this planet has a thick, cloudy atmosphere that reflects heat (keeping it habitable) or a runaway greenhouse effect like Venus (making it too hot).
Why it’s in Kaltenegger’s “Top List”
- Stability: Because the star is old and stable, any atmosphere the planet has is more likely to have survived for billions of years, giving life a long time to potentially evolve.
- Observability: Its proximity (14 ly) and the fact that it is a rocky world make it a primary target for the next generation of extremely large ground-based telescopes and the James Webb Space Telescope.
- The “Goldilocks” System: It sits between planet “b” (which is too hot) and planet “d” (which is likely too cold), providing a perfect comparison for how planetary environments change with distance.
