HD 155358 is 142 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G0 star; the first was found in 2007 by radial velocity (McDonald Observatory).
Fly there in 3DHD 155358 c takes 391.9 days to go round its star once.
| Spectral type | G0 |
| Surface temperature | 5,905 K |
| Mass | 1.15 solar masses |
| Radius | 1.38 solar radii |
| Luminosity | 1.993 times the Sun |
| Apparent magnitude | 7.28 |
| Age | about 10.7 billion years |
| Distance from the Sun | 142.3 light-years (43.6 parsecs) |
| Position (J2000) | RA 257.3931°, Dec 33.3549° |
| Constellation | Hercules |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 155358 b | 194.3 days | 0.630 AU | 13.8 R⊕ estimated | 314.65 M⊕ minimum | Radial Velocity, 2007 |
| HD 155358 c | 391.9 days | 1.020 AU | 13.9 R⊕ estimated | 261 M⊕ minimum | Radial Velocity, 2007 |
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 5,905 K, 2.0 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.33 to 2.34 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 142 years ago, around 1880.