HD 203387 is 201 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,174 K star; the first was found in 2022 by radial velocity (Multiple Observatories).
Fly there in 3DHD 203387 c takes 6.8 years to go round its star once.
| Surface temperature | 5,174 K |
| Mass | 2.817 solar masses |
| Radius | 10.5852 solar radii |
| Luminosity | 72.44 times the Sun |
| Apparent magnitude | 4.28 |
| Distance from the Sun | 201.4 light-years (61.7 parsecs) |
| Position (J2000) | RA 320.5618°, Dec -16.8345° |
| Constellation | Capricornus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 203387 b | 512.5 days | 1.771 AU | 13.1 R⊕ estimated | 1106 M⊕ minimum | Radial Velocity, 2022 |
| HD 203387 c | 6.8 years | 5.067 AU | 12.6 R⊕ estimated | 2378.9 M⊕ | Radial Velocity, 2022 |
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 5,174 K, 72 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 8.37 to 15.05 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 201 years ago, around 1820.