Star · M3.5 V
GJ 422
GJ 422 is a main-sequence star of spectral type M3.5 V in the constellation Carina, 41.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 55042 |
|---|---|
| Constellation | Carina |
| Distance | 41.3 light-years (12.7 pc) |
| Apparent magnitude | magnitude 11.66 |
| Absolute magnitude | magnitude 11.15 |
| Spectral type | M3.5 V |
| Surface temperature | 3,320 K |
| Luminosity | 0.011 L☉ |
| Radius | 0.37 R☉ |
| Mass | 0.35 M☉ |
| Right ascension (J2000) | 11h 16m 01.5s |
| Declination (J2000) | −57° 32′ 52″ |
| Space velocity (relative to the Sun) | 172.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.66. Visible from the whole Southern Hemisphere and north to latitude 32° N. South of latitude 32° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1985. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 733 thousand years.
The Sun seen from there
From a planet around GJ 422, the Sun would look like a star of magnitude 5.34, in the direction where our sky has the constellation Cassiopeia. It would be visible to the naked eye.
Planets
- GJ 422 b 20.1-day orbit · 3.33 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.