HD 100546 is 358 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this B9 Vne star; the first was found in 2014 by imaging (Paranal Observatory).
Fly there in 3DHD 100546 b was photographed directly: it is one of the few exoplanets seen as its own point of light rather than inferred from its star.
Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.
| Spectral type | B9 Vne |
| Surface temperature | 10,500 K |
| Mass | 2.4 solar masses |
| Radius | 1.85288 solar radii |
| Luminosity | 31.62 times the Sun |
| Apparent magnitude | 6.69 |
| Age | about 0.0055 billion years |
| Distance from the Sun | 357.7 light-years (109.7 parsecs) |
| Position (J2000) | RA 173.3555°, Dec -70.1948° |
| Constellation | Musca |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 100546 b disputed | 249.1 years from Kepler’s law | 53.000 AU | 77.342 R⊕ | 2701.5 M⊕ | Imaging, 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.