Star · K0
16 Ser
16 Ser is a giant star of spectral type K0 in the constellation Serpens, 227.9 light-years from the Sun.
| Other names | HIP 76425 |
|---|---|
| Constellation | Serpens |
| Distance | 227.9 light-years (69.9 pc) |
| Apparent magnitude | magnitude 5.26 |
| Absolute magnitude | magnitude 1.04 |
| Spectral type | K0 |
| Surface temperature | 4,930 K |
| Luminosity | 46.7 L☉ |
| Radius | 9.37 R☉ |
| Mass | 2.72 M☉ (estimated) |
| Right ascension (J2000) | 15h 36m 29.6s |
| Declination (J2000) | +10° 00′ 36″ |
| Space velocity (relative to the Sun) | 43.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.26). Visible from the whole Northern Hemisphere and south to latitude 80° S. North of latitude 80° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1798. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.0 million years.
The Sun seen from there
From a planet around 16 Ser, the Sun would look like a star of magnitude 9.05, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- χ Ser 13.8 light-years
- HIP 76889 15.5 light-years
- HIP 77829 17.2 light-years
- HIP 76906 17.7 light-years
- HIP 76899 19.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.