HD 9446 is 164 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G5 V star; the first was found in 2009 by radial velocity (Haute-Provence Observatory).
Fly there in 3DHD 9446 b goes round its star every 30.1 days, 2.9 times as often as Mercury goes round the Sun.
| Spectral type | G5 V |
| Surface temperature | 5,793 K |
| Mass | 1 solar masses |
| Radius | 1 solar radii |
| Luminosity | 1.1 times the Sun |
| Apparent magnitude | 8.35 |
| Distance from the Sun | 164.2 light-years (50.4 parsecs) |
| Position (J2000) | RA 23.3350°, Dec 29.2649° |
| Constellation | Triangulum |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 9446 b | 30.1 days | 0.189 AU | 14 R⊕ estimated | 222.47 M⊕ minimum | Radial Velocity, 2009 |
| HD 9446 c | 192.9 days | 0.654 AU | 13.4 R⊕ estimated | 578.43 M⊕ minimum | Radial Velocity, 2009 |
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.