HD 154857 is 207 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G5 V star; the first was found in 2004 by radial velocity (Anglo-Australian Telescope).
Fly there in 3DHD 154857 c takes 9.5 years to go round its star once.
| Spectral type | G5 V |
| Surface temperature | 5,589 K |
| Mass | 1.96 solar masses |
| Radius | 2.3 solar radii |
| Luminosity | 4.599 times the Sun |
| Apparent magnitude | 7.24 |
| Age | about 5.64 billion years |
| Distance from the Sun | 206.9 light-years (63.4 parsecs) |
| Position (J2000) | RA 257.8162°, Dec -56.6810° |
| Constellation | Ara |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 154857 b | 408.6 days | 1.290 AU | 13.3 R⊕ estimated | 778.68 M⊕ minimum | Radial Velocity, 2004 |
| HD 154857 c | 9.5 years | 5.360 AU | 13.2 R⊕ estimated | 819.97 M⊕ minimum | Radial Velocity, 2014 |
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.