Star · M
GJ 4120
GJ 4120 is a main-sequence star of spectral type M in the constellation Draco, 68.6 light-years from the Sun.
| Other names | HIP 96702 |
|---|---|
| Constellation | Draco |
| Distance | 68.6 light-years (21.0 pc) |
| Apparent magnitude | magnitude 10.94 |
| Absolute magnitude | magnitude 9.32 |
| Spectral type | M |
| Surface temperature | 3,820 K |
| Luminosity | 0.0563 L☉ |
| Radius | 0.541 R☉ |
| Mass | 0.487 M☉ (estimated) |
| Right ascension (J2000) | 19h 39m 32.9s |
| Declination (J2000) | +71° 52′ 20″ |
| Space velocity (relative to the Sun) | 59.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.94. Visible from the whole Northern Hemisphere and south to latitude 18° S. North of latitude 18° N it never sets. It stands highest at midnight in July, the best time to observe it.
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 GJ 4120, the Sun would look like a star of magnitude 6.45, in the direction where our sky has the constellation Volans. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- CWISE J201221.32+701740.2 3.82 light-years
- CWISE J193823.28+663602.7 7.18 light-years
- GJ 4170 8.56 light-years
- Gl 828.5 10.7 light-years
- GJ 4093 10.8 light-years
- GJ 1225 11.2 light-years
- HIP 102300 11.7 light-years
- Dziban B 12.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.