Star · A5V
π Cas
π Cas is a main-sequence star of spectral type A5V in the constellation Cassiopeia, 175.1 light-years from the Sun.
| Other names | HIP 3414 |
|---|---|
| Constellation | Cassiopeia |
| Distance | 175.1 light-years (53.7 pc) |
| Apparent magnitude | magnitude 4.95 |
| Absolute magnitude | magnitude 1.30 |
| Spectral type | A5V |
| Surface temperature | 8,400 K |
| Luminosity | 28.4 L☉ |
| Radius | 2.52 R☉ |
| Mass | 2.36 M☉ (estimated) |
| Right ascension (J2000) | 0h 43m 28.1s |
| Declination (J2000) | +47° 01′ 28″ |
| Space velocity (relative to the Sun) | 17.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.95). Visible from the whole Northern Hemisphere and south to latitude 43° S. North of latitude 43° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1851. 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 Cas, the Sun would look like a star of magnitude 8.48, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 2894 6.56 light-years
- 2MASSI J0025036+475919 10.1 light-years
- HIP 4637 11.3 light-years
- HIP 1774 12.7 light-years
- HIP 3022 13.3 light-years
- HIP 2414 15.6 light-years
- HIP 1987 19.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.