Star · K0IV
HIP 2422
HIP 2422 is a subgiant star of spectral type K0IV in the constellation Cassiopeia, 124.8 light-years from the Sun.
| Constellation | Cassiopeia |
|---|---|
| Distance | 124.8 light-years (38.3 pc) |
| Apparent magnitude | magnitude 6.18 |
| Absolute magnitude | magnitude 3.27 |
| Spectral type | K0IV |
| Surface temperature | 5,040 K |
| Luminosity | 5.7 L☉ |
| Radius | 3.13 R☉ |
| Mass | 1.55 M☉ (estimated) |
| Right ascension (J2000) | 0h 30m 55.1s |
| Declination (J2000) | +77° 01′ 10″ |
| Space velocity (relative to the Sun) | 63.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.18). Visible from the whole Northern Hemisphere and south to latitude 13° S. North of latitude 13° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1901. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around HIP 2422, the Sun would look like a star of magnitude 7.74, in the direction where our sky has the constellation Chamaeleon. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3050 3.02 light-years
- GJ 9843 7.17 light-years
- HIP 7338 8.73 light-years
- HIP 115777 8.76 light-years
- HIP 116845 9.30 light-years
- HIP 8525 11.1 light-years
- HIP 4041 14.0 light-years
- 2MASS J01390900+8109597 15.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.