Star · M3III
HIP 8240
HIP 8240 is a giant star of spectral type M3III in the constellation Phoenix, 689.5 light-years from the Sun.
| Constellation | Phoenix |
|---|---|
| Distance | 689.5 light-years (211.4 pc) |
| Apparent magnitude | magnitude 5.49 |
| Absolute magnitude | magnitude −1.14 |
| Spectral type | M3III |
| Surface temperature | 3,630 K |
| Luminosity | 1,130 L☉ |
| Radius | 85.2 R☉ |
| Mass | 6.78 M☉ (estimated) |
| Right ascension (J2000) | 1h 46m 06.0s |
| Declination (J2000) | −50° 48′ 58″ |
| Space velocity (relative to the Sun) | 46.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.49). Visible from the whole Southern Hemisphere and north to latitude 39° N. South of latitude 39° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1336. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 12 million years.
The Sun seen from there
From a planet around HIP 8240, the Sun would look like a star of magnitude 11.46, in the direction where our sky has the constellation Ursa Major. 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.