Star · M0
Gl 122
Gl 122 is a main-sequence star of spectral type M0 in the constellation Cassiopeia, 68.6 light-years from the Sun.
| Other names | HIP 14633 |
|---|---|
| Constellation | Cassiopeia |
| Distance | 68.6 light-years (21.0 pc) |
| Apparent magnitude | magnitude 9.82 |
| Absolute magnitude | magnitude 8.20 |
| Spectral type | M0 |
| Surface temperature | 4,080 K |
| Luminosity | 0.117 L☉ |
| Radius | 0.683 R☉ |
| Mass | 0.585 M☉ (estimated) |
| Right ascension (J2000) | 3h 09m 04.4s |
| Declination (J2000) | +76° 02′ 28″ |
| Space velocity (relative to the Sun) | 61.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.82. Visible from the whole Northern Hemisphere and south to latitude 14° S. North of latitude 14° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1957. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around Gl 122, the Sun would look like a star of magnitude 6.45, in the direction where our sky has the constellation Apus. It would be visible 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.