K2-348 is 658 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,077 K star; the first was found in 2021 by transit (K2).
Fly there in 3DK2-348 b goes round its star every 4.69 days, 19 times as often as Mercury goes round the Sun.
Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.
| Surface temperature | 5,077 K |
| Mass | 0.83 solar masses |
| Radius | 0.85 solar radii |
| Luminosity | 0.4088 times the Sun |
| Apparent magnitude | 12.572 |
| Distance from the Sun | 658.4 light-years (201.9 parsecs) |
| Position (J2000) | RA 130.8783°, Dec 24.4230° |
| Constellation | Cancer |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-348 b | 4.69 days | 0.0515 AU from Kepler’s law | 3.26 R⊕ | 10.7 M⊕ estimated | Transit, 2021 |
| K2-348 c | 12.6 days | 0.0993 AU from Kepler’s law | 2.67 R⊕ | 7.61 M⊕ estimated | Transit, 2021 |
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 5,077 K, 0.41 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.63 to 1.14 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 658 years ago, around 1370.