Star · B9 Vne
HD 100546
HD 100546 is a main-sequence star of spectral type B9 Vne in the constellation Musca, 352.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 56379 |
|---|---|
| Constellation | Musca |
| Distance | 352.6 light-years (108.1 pc) |
| Apparent magnitude | magnitude 6.69 |
| Absolute magnitude | magnitude 1.52 |
| Spectral type | B9 Vne |
| Surface temperature | 10,500 K |
| Luminosity | 31.6 L☉ |
| Radius | 1.85 R☉ |
| Mass | 2.4 M☉ |
| Age | 0.0 billion years |
| Right ascension (J2000) | 11h 33m 25.5s |
| Declination (J2000) | −70° 11′ 41″ |
| Space velocity (relative to the Sun) | 19.9 km/s |
In the sky
Too faint for the naked eye (magnitude 6.69); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 20° N. South of latitude 20° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1673. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.3 million years.
The Sun seen from there
From a planet around HD 100546, the Sun would look like a star of magnitude 10.00, in the direction where our sky has the constellation Cepheus. It would be invisible to the naked eye.
Planets
- HD 100546 b 77.3 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.