Star · B9III
16 Cas
16 Cas is a giant star of spectral type B9III in the constellation Cassiopeia, 671.7 light-years from the Sun.
| Other names | HIP 2707 |
|---|---|
| Constellation | Cassiopeia |
| Distance | 671.7 light-years (205.9 pc) |
| Apparent magnitude | magnitude 6.47 |
| Absolute magnitude | magnitude −0.10 |
| Spectral type | B9III |
| Surface temperature | 10,780 K |
| Luminosity | 146 L☉ |
| Radius | 3.47 R☉ |
| Mass | 3.77 M☉ (estimated) |
| Right ascension (J2000) | 0h 34m 24.9s |
| Declination (J2000) | +66° 45′ 01″ |
| Space velocity (relative to the Sun) | 27.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.47). Visible from the whole Northern Hemisphere and south to latitude 23° S. North of latitude 23° 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 1354. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 12 million years.
The Sun seen from there
From a planet around 16 Cas, the Sun would look like a star of magnitude 11.40, in the direction where our sky has the constellation Musca. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.