Star · A1V
ι Ser
ι Ser is a main-sequence star of spectral type A1V in the constellation Serpens, 190.1 light-years from the Sun.
| Other names | HIP 76852 |
|---|---|
| Constellation | Serpens |
| Distance | 190.1 light-years (58.3 pc) |
| Apparent magnitude | magnitude 4.51 |
| Absolute magnitude | magnitude 0.68 |
| Spectral type | A1V |
| Surface temperature | 9,410 K |
| Luminosity | 57.5 L☉ |
| Radius | 2.85 R☉ |
| Mass | 2.89 M☉ (estimated) |
| Right ascension (J2000) | 15h 41m 33.1s |
| Declination (J2000) | +19° 40′ 13″ |
| Space velocity (relative to the Sun) | 26.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.51). Visible from the whole Northern Hemisphere and south to latitude 70° S. North of latitude 70° 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 1836. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.4 million years.
The Sun seen from there
From a planet around ι Ser, the Sun would look like a star of magnitude 8.66, 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):
- HIP 77129 8.10 light-years
- SDSS J154340.87+182732.7 8.58 light-years
- HIP 77459 13.3 light-years
- HIP 76189 13.9 light-years
- τ⁷ Ser 16.3 light-years
- HIP 77930 16.4 light-years
- HIP 75437 17.0 light-years
- HIP 76408 17.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.