Star · A3IV
48 Cas
48 Cas is a subgiant star of spectral type A3IV in the constellation Cassiopeia, 113.1 light-years from the Sun.
| Other names | HIP 9480 |
|---|---|
| Constellation | Cassiopeia |
| Distance | 113.1 light-years (34.7 pc) |
| Apparent magnitude | magnitude 4.49 |
| Absolute magnitude | magnitude 1.79 |
| Spectral type | A3IV |
| Surface temperature | 8,450 K |
| Luminosity | 18.2 L☉ |
| Radius | 1.99 R☉ |
| Mass | 2.08 M☉ (estimated) |
| Right ascension (J2000) | 2h 01m 57.4s |
| Declination (J2000) | +70° 54′ 26″ |
| Space velocity (relative to the Sun) | 11.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.49). Visible from the whole Northern Hemisphere and south to latitude 19° S. North of latitude 19° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1913. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.0 million years.
The Sun seen from there
From a planet around 48 Cas, the Sun would look like a star of magnitude 7.53, in the direction where our sky has the constellation Apus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.