Star · K1III
HIP 81141
HIP 81141 is a giant star of spectral type K1III in the constellation Apus, 1,001 light-years from the Sun.
| Constellation | Apus |
|---|---|
| Distance | 1,001 light-years (306.9 pc) |
| Apparent magnitude | magnitude 5.50 |
| Absolute magnitude | magnitude −1.93 |
| Spectral type | K1III |
| Surface temperature | 4,240 K |
| Luminosity | 1,140 L☉ |
| Radius | 62.6 R☉ |
| Mass | 6.79 M☉ (estimated) |
| Right ascension (J2000) | 16h 34m 19.3s |
| Declination (J2000) | −70° 59′ 17″ |
| Space velocity (relative to the Sun) | 29.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.50). Visible from the whole Southern Hemisphere and north to latitude 19° N. South of latitude 19° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1025. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 18 million years.
The Sun seen from there
From a planet around HIP 81141, the Sun would look like a star of magnitude 12.26, in the direction where our sky has the constellation Camelopardalis. 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.