HD 156098 is 157 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 6,419 K star; the first was found in 2022 by radial velocity (Multiple Observatories).
Fly there in 3DHD 156098 b goes round its star every 21.9 days, 4 times as often as Mercury goes round the Sun.
| Surface temperature | 6,419 K |
| Mass | 1.29 solar masses |
| Radius | 2.75716 solar radii |
| Luminosity | 11.63 times the Sun |
| Apparent magnitude | 5.53 |
| Distance from the Sun | 157.4 light-years (48.2 parsecs) |
| Position (J2000) | RA 259.2647°, Dec -32.6631° |
| Constellation | Scorpius |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 156098 b | 21.9 days | 0.167 AU | 4.12 R⊕ estimated | 15.891 M⊕ minimum | Radial Velocity, 2022 |
| HD 156098 c | 21.5 years | 8.415 AU | 12.8 R⊕ estimated | 1661.6 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 6,419 K, 12 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 3.12 to 5.42 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 157 years ago, around 1870.