Star · O9II
HIP 107374
HIP 107374 is a bright giant star of spectral type O9II in the constellation Cepheus, 3,269 light-years from the Sun.
| Constellation | Cepheus |
|---|---|
| Distance | 3,269 light-years (1,002 pc) |
| Apparent magnitude | magnitude 5.94 |
| Absolute magnitude | magnitude −4.06 |
| Spectral type | O9II |
| Surface temperature | 7,390 K |
| Luminosity | 3,640 L☉ |
| Radius | 36.9 R☉ |
| Mass | 9.46 M☉ (estimated) |
| Right ascension (J2000) | 21h 44m 53.3s |
| Declination (J2000) | +62° 27′ 38″ |
| Space velocity (relative to the Sun) | 25.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.94). Visible from the whole Northern Hemisphere and south to latitude 28° S. North of latitude 28° 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 1244 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 58 million years.
The Sun seen from there
From a planet around HIP 107374, the Sun would look like a star of magnitude 14.83, 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.