Star · A2IV
HIP 102216
HIP 102216 is a subgiant star of spectral type A2IV in the constellation Cepheus, 651.3 light-years from the Sun.
| Constellation | Cepheus |
|---|---|
| Distance | 651.3 light-years (199.7 pc) |
| Apparent magnitude | magnitude 6.17 |
| Absolute magnitude | magnitude −0.33 |
| Spectral type | A2IV |
| Surface temperature | 9,720 K |
| Luminosity | 153 L☉ |
| Radius | 4.36 R☉ |
| Mass | 3.82 M☉ (estimated) |
| Right ascension (J2000) | 20h 42m 39.7s |
| Declination (J2000) | +60° 36′ 05″ |
| Space velocity (relative to the Sun) | 19.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.17). Visible from the whole Northern Hemisphere and south to latitude 29° S. North of latitude 29° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1375. 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 102216, the Sun would look like a star of magnitude 11.33, in the direction where our sky has the constellation Carina. 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.