Star · M1
HIP 84105
HIP 84105 is a supergiant star of spectral type M1 in the constellation Ara, 1,453 light-years from the Sun.
| Constellation | Ara |
|---|---|
| Distance | 1,453 light-years (445.6 pc) |
| Apparent magnitude | magnitude 5.94 |
| Absolute magnitude | magnitude −2.30 |
| Spectral type | M1 |
| Surface temperature | 3,410 K |
| Luminosity | 4,840 L☉ |
| Radius | 199 R☉ |
| Mass | 10.3 M☉ (estimated) |
| Right ascension (J2000) | 17h 11m 38.7s |
| Declination (J2000) | −48° 52′ 24″ |
| Space velocity (relative to the Sun) | 31.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.94). Visible from the whole Southern Hemisphere and north to latitude 41° N. South of latitude 41° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 573. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 26 million years.
The Sun seen from there
From a planet around HIP 84105, the Sun would look like a star of magnitude 13.07, in the direction where our sky has the constellation Auriga. 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.