Star · B1
κ¹ Aps
κ¹ Aps is a giant star of spectral type B1 in the constellation Apus, 1,059 light-years from the Sun.
| Other names | HIP 76013 |
|---|---|
| Constellation | Apus |
| Distance | 1,059 light-years (324.7 pc) |
| Apparent magnitude | magnitude 5.40 |
| Absolute magnitude | magnitude −2.16 |
| Spectral type | B1 |
| Surface temperature | 12,410 K |
| Luminosity | 1,270 L☉ |
| Radius | 7.72 R☉ |
| Mass | 7 M☉ (estimated) |
| Right ascension (J2000) | 15h 31m 30.8s |
| Declination (J2000) | −73° 23′ 22″ |
| Space velocity (relative to the Sun) | 68.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.40). Visible from the whole Southern Hemisphere and north to latitude 17° N. South of latitude 17° 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 967. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 19 million years.
The Sun seen from there
From a planet around κ¹ Aps, the Sun would look like a star of magnitude 12.39, 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.