Star · F2II
ψ² Dra
ψ² Dra is a bright giant star of spectral type F2II in the constellation Draco, 947.1 light-years from the Sun.
| Other names | HIP 87728 |
|---|---|
| Constellation | Draco |
| Distance | 947.1 light-years (290.4 pc) |
| Apparent magnitude | magnitude 5.43 |
| Absolute magnitude | magnitude −1.88 |
| Spectral type | F2II |
| Surface temperature | 7,220 K |
| Luminosity | 485 L☉ |
| Radius | 14.1 R☉ |
| Mass | 5.32 M☉ (estimated) |
| Right ascension (J2000) | 17h 55m 11.2s |
| Declination (J2000) | +72° 00′ 18″ |
| Space velocity (relative to the Sun) | 12.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.43). Visible from the whole Northern Hemisphere and south to latitude 18° S. North of latitude 18° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1079. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 17 million years.
The Sun seen from there
From a planet around ψ² Dra, the Sun would look like a star of magnitude 12.14, in the direction where our sky has the constellation Mensa. 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.