Star · A3V
π Ser
π Ser is a main-sequence star of spectral type A3V in the constellation Serpens, 174.5 light-years from the Sun.
| Other names | HIP 78554 |
|---|---|
| Constellation | Serpens |
| Distance | 174.5 light-years (53.5 pc) |
| Apparent magnitude | magnitude 4.82 |
| Absolute magnitude | magnitude 1.18 |
| Spectral type | A3V |
| Surface temperature | 9,370 K |
| Luminosity | 36.2 L☉ |
| Radius | 2.28 R☉ |
| Mass | 2.53 M☉ (estimated) |
| Right ascension (J2000) | 16h 02m 17.7s |
| Declination (J2000) | +22° 48′ 16″ |
| Space velocity (relative to the Sun) | 37.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.82). Visible from the whole Northern Hemisphere and south to latitude 67° S. North of latitude 67° 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 1852. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around π Ser, the Sun would look like a star of magnitude 8.47, 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 80117 13.3 light-years
- δ CrB 14.8 light-years
- HIP 77459 16.3 light-years
- SDSS J154628.38+253634.3 16.5 light-years
- HIP 77129 17.0 light-years
- SDSS J162834.35+242847.2 19.0 light-years
- ULAS J162655.04+252446.8 19.2 light-years
- τ⁷ Ser 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.