HD 34445 is 150 light-years from the Sun. The NASA Exoplanet Archive lists 6 planets around this G0 V star; the first was found in 2009 by radial velocity (W. M. Keck Observatory).
Fly there in 3DHD 34445 e goes round its star every 49.2 days, 1.8 times as often as Mercury goes round the Sun.
| Spectral type | G0 V |
| Surface temperature | 5,879 K |
| Mass | 1.14 solar masses |
| Radius | 1.38 solar radii |
| Luminosity | 2.01 times the Sun |
| Apparent magnitude | 7.31 |
| Age | about 8.5 billion years |
| Distance from the Sun | 150.3 light-years (46.1 parsecs) |
| Position (J2000) | RA 79.4207°, Dec 7.3527° |
| Constellation | Orion |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 34445 e | 49.2 days | 0.269 AU | 4.26 R⊕ estimated | 16.8 M⊕ minimum | Radial Velocity, 2017 |
| HD 34445 d | 117.9 days | 0.482 AU | 6.07 R⊕ estimated | 30.7 M⊕ minimum | Radial Velocity, 2017 |
| HD 34445 c | 214.7 days | 0.718 AU | 8.42 R⊕ estimated | 53.5 M⊕ minimum | Radial Velocity, 2017 |
| HD 34445 f | 676.8 days | 1.543 AU | 6.88 R⊕ estimated | 37.9 M⊕ minimum | Radial Velocity, 2017 |
| HD 34445 b | 2.9 years | 2.070 AU | 13.9 R⊕ estimated | 260.62 M⊕ minimum | Radial Velocity, 2009 |
| HD 34445 g | 15.6 years | 6.360 AU | 13.6 R⊕ estimated | 120.6 M⊕ minimum | Radial Velocity, 2017 |
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 5,879 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 1.34 to 2.36 AU. 2 of its 6 known planets orbit 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 150 years ago, around 1880.