Star · A8IV
10 Ser
10 Ser is a subgiant star of spectral type A8IV in the constellation Serpens, 130.7 light-years from the Sun.
| Other names | HIP 75761 |
|---|---|
| Constellation | Serpens |
| Distance | 130.7 light-years (40.1 pc) |
| Apparent magnitude | magnitude 5.15 |
| Absolute magnitude | magnitude 2.14 |
| Spectral type | A8IV |
| Surface temperature | 7,830 K |
| Luminosity | 12.4 L☉ |
| Radius | 1.92 R☉ |
| Mass | 1.88 M☉ (estimated) |
| Right ascension (J2000) | 15h 28m 38.2s |
| Declination (J2000) | +1° 50′ 31″ |
| Space velocity (relative to the Sun) | 25.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.15). Visible from the whole Northern Hemisphere and south to latitude 88° S. 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 1895. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around 10 Ser, the Sun would look like a star of magnitude 7.84, 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):
- ULAS J154701.84+005320.3 11.1 light-years
- HIP 75069 11.2 light-years
- SDSS J154727.23+033636.3 11.5 light-years
- HIP 76280 13.2 light-years
- HIP 77749 16.2 light-years
- HIP 75101 16.3 light-years
- Gl 579.3 16.5 light-years
- HIP 77292 16.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.