HD 63433 is 73.1 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this G5 V star; the first was found in 2020 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DHD 63433 d goes round its star every 4.21 days, 21 times as often as Mercury goes round the Sun.
| Spectral type | G5 V |
| Surface temperature | 5,553 K |
| Mass | 0.956 solar masses |
| Radius | 0.934 solar radii |
| Luminosity | 0.748 times the Sun |
| Apparent magnitude | 6.92035 |
| Age | about 0.414 billion years |
| Distance from the Sun | 73.1 light-years (22.4 parsecs) |
| Position (J2000) | RA 117.4794°, Dec 27.3631° |
| Constellation | Gemini |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 63433 d | 4.21 days | 0.0503 AU | 1.073 R⊕ | 1.25 M⊕ estimated | Transit, 2023 |
| HD 63433 b | 7.11 days | 0.0720 AU | 2.14 R⊕ | 21.755 M⊕ | Transit, 2020 |
| HD 63433 c | 20.5 days | 0.146 AU | 2.692 R⊕ | 15.539 M⊕ | Transit, 2020 |
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 5,553 K, 0.75 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.83 to 1.48 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 73 years ago, within living memory.