Star · G8III
HIP 109972
HIP 109972 is a giant star of spectral type G8III in the constellation Cepheus, 617.1 light-years from the Sun.
| Constellation | Cepheus |
|---|---|
| Distance | 617.1 light-years (189.2 pc) |
| Apparent magnitude | magnitude 5.88 |
| Absolute magnitude | magnitude −0.50 |
| Spectral type | G8III |
| Surface temperature | 4,870 K |
| Luminosity | 200 L☉ |
| Radius | 19.9 R☉ |
| Mass | 4.12 M☉ (estimated) |
| Right ascension (J2000) | 22h 16m 26.6s |
| Declination (J2000) | +57° 13′ 13″ |
| Space velocity (relative to the Sun) | 43.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.88). Visible from the whole Northern Hemisphere and south to latitude 33° S. North of latitude 33° 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 1409. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
The Sun seen from there
From a planet around HIP 109972, the Sun would look like a star of magnitude 11.21, 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.