Star · K2I
HIP 64820
HIP 64820 is a supergiant star of spectral type K2I in the constellation Musca, 1,293 light-years from the Sun.
| Constellation | Musca |
|---|---|
| Distance | 1,293 light-years (396.5 pc) |
| Apparent magnitude | magnitude 4.86 |
| Absolute magnitude | magnitude −3.13 |
| Spectral type | K2I |
| Surface temperature | 3,820 K |
| Luminosity | 5,410 L☉ |
| Radius | 168 R☉ |
| Mass | 10.6 M☉ (estimated) |
| Right ascension (J2000) | 13h 17m 13.0s |
| Declination (J2000) | −66° 47′ 00″ |
| Space velocity (relative to the Sun) | 33.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.86). Visible from the whole Southern Hemisphere and north to latitude 23° N. South of latitude 23° S it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 733. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 23 million years.
The Sun seen from there
From a planet around HIP 64820, the Sun would look like a star of magnitude 12.82, in the direction where our sky has the constellation Cassiopeia. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.