Kepler-1990 is 1,281 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,751 K star; the first was found in 2023 by transit (Kepler).
Fly there in 3DKepler-1990 b goes round its star every 41.6 hours, 51 times as often as Mercury goes round the Sun.
| Surface temperature | 5,751 K |
| Mass | 1.028 solar masses |
| Radius | 1.071 solar radii |
| Luminosity | 1.309 times the Sun |
| Apparent magnitude | 11.946 |
| Age | about 2.5 billion years |
| Distance from the Sun | 1280.9 light-years (392.7 parsecs) |
| Position (J2000) | RA 299.7047°, Dec 44.4357° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-1990 b | 41.6 hours | 0.0286 AU | 3.27 R⊕ | 10.7 M⊕ estimated | Transit, 2023 |
| Kepler-1990 c | 4.07 days | 0.0504 AU | 0.98 R⊕ | 0.904 M⊕ estimated | 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 5,751 K, 1.3 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.09 to 1.92 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 1,281 years ago, around AD 750.