Star · K2III
HIP 2497
HIP 2497 is a giant star of spectral type K2III in the constellation Cassiopeia, 336.5 light-years from the Sun.
| Constellation | Cassiopeia |
|---|---|
| Distance | 336.5 light-years (103.2 pc) |
| Apparent magnitude | magnitude 5.59 |
| Absolute magnitude | magnitude 0.52 |
| Spectral type | K2III |
| Surface temperature | 4,380 K |
| Luminosity | 106 L☉ |
| Radius | 17.8 R☉ |
| Mass | 3.44 M☉ (estimated) |
| Right ascension (J2000) | 0h 31m 41.2s |
| Declination (J2000) | +52° 50′ 22″ |
| Space velocity (relative to the Sun) | 58.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.59). Visible from the whole Northern Hemisphere and south to latitude 37° S. North of latitude 37° 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 1689. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.0 million years.
The Sun seen from there
From a planet around HIP 2497, the Sun would look like a star of magnitude 9.90, in the direction where our sky has the constellation Centaurus. 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.