K2-415 is 71.2 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M5 V star; the first was found in 2023 by transit (K2).
Fly there in 3DK2-415 b goes round its star every 4.02 days, 22 times as often as Mercury goes round the Sun.
| Spectral type | M5 V |
| Surface temperature | 3,173 K |
| Mass | 0.1635 solar masses |
| Radius | 0.1965 solar radii |
| Luminosity | 0.00351 times the Sun |
| Apparent magnitude | 15.33 |
| Distance from the Sun | 71.2 light-years (21.8 parsecs) |
| Position (J2000) | RA 137.2015°, Dec 11.8623° |
| Constellation | Cancer |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-415 b | 4.02 days | 0.0270 AU | 1.015 R⊕ | 7.5 M⊕ | Transit, 2023 |
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 3,173 K, 0.0035 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.062 to 0.12 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 71 years ago, within living memory.