Star · K4V
GJ 3722
GJ 3722 is a main-sequence star of spectral type K4V in the constellation Draco, 42.1 light-years from the Sun.
| Other names | HIP 60444 |
|---|---|
| Constellation | Draco |
| Distance | 42.1 light-years (12.9 pc) |
| Apparent magnitude | magnitude 11.19 |
| Absolute magnitude | magnitude 10.64 |
| Spectral type | K4V |
| Surface temperature | 4,530 K |
| Luminosity | 0.00854 L☉ |
| Radius | 0.15 R☉ |
| Mass | 0.239 M☉ (estimated) |
| Right ascension (J2000) | 12h 23m 33.2s |
| Declination (J2000) | +67° 11′ 18″ |
| Space velocity (relative to the Sun) | 21.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.19. Visible from the whole Northern Hemisphere and south to latitude 23° S. North of latitude 23° N 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 1984. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 746 thousand years.
The Sun seen from there
From a planet around GJ 3722, the Sun would look like a star of magnitude 5.38, in the direction where our sky has the constellation Tucana. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3612 7.40 light-years
- 2MASS J12373919+6526148 8.28 light-years
- Gl 420A 8.33 light-years
- Gl 420B 8.33 light-years
- WISEA J125721.01+715349.3 8.43 light-years
- GJ 3704 8.59 light-years
- Gl 487 8.93 light-years
- 2MASS J13243553+6358281 10.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.