Star · A5IV
HIP 105229
HIP 105229 is a subgiant star of spectral type A5IV in the constellation Cygnus, 1,778 light-years from the Sun.
| Constellation | Cygnus |
|---|---|
| Distance | 1,778 light-years (545.3 pc) |
| Apparent magnitude | magnitude 6.15 |
| Absolute magnitude | magnitude −2.53 |
| Spectral type | A5IV |
| Surface temperature | 7,750 K |
| Luminosity | 910 L☉ |
| Radius | 16.8 R☉ |
| Mass | 6.36 M☉ (estimated) |
| Right ascension (J2000) | 21h 18m 55.3s |
| Declination (J2000) | +41° 02′ 26″ |
| Space velocity (relative to the Sun) | 19.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.15). Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 248. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 32 million years.
The Sun seen from there
From a planet around HIP 105229, the Sun would look like a star of magnitude 13.51, in the direction where our sky has the constellation Vela. 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.