K2-261 is 696 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G7 IV/V star; the first was found in 2018 by transit (K2).
Fly there in 3DK2-261 b goes round its star every 11.6 days, 8 times as often as Mercury goes round the Sun.
| Spectral type | G7 IV/V |
| Surface temperature | 5,490 K |
| Mass | 1.107 solar masses |
| Radius | 1.663 solar radii |
| Luminosity | 2.259 times the Sun |
| Apparent magnitude | 10.612 |
| Age | about 8.8 billion years |
| Distance from the Sun | 695.6 light-years (213.3 parsecs) |
| Position (J2000) | RA 163.0323°, Dec 0.4932° |
| Constellation | Leo |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-261 b | 11.6 days | 0.109 AU | 9.2698 R⊕ | 68.969 M⊕ | Transit, 2018 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.
For a star of 5,490 K, 2.3 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.45 to 2.58 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.
The light you see left 696 years ago, around 1330.