Star · G3V
GJ 3944
GJ 3944 is a main-sequence star of spectral type G3V in the constellation Scorpius, 125.5 light-years from the Sun.
| Other names | HIP 79524 |
|---|---|
| Constellation | Scorpius |
| Distance | 125.5 light-years (38.5 pc) |
| Apparent magnitude | magnitude 6.68 |
| Absolute magnitude | magnitude 3.75 |
| Spectral type | G3V |
| Surface temperature | 5,900 K |
| Luminosity | 2.86 L☉ |
| Radius | 1.62 R☉ |
| Mass | 1.3 M☉ (estimated) |
| Right ascension (J2000) | 16h 13m 40.4s |
| Declination (J2000) | −21° 24′ 00″ |
| Space velocity (relative to the Sun) | 30.9 km/s |
In the sky
Too faint for the naked eye (magnitude 6.68); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 69° N. South of latitude 69° S it never sets. It stands highest at midnight in May, the best time to observe it.
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 GJ 3944, the Sun would look like a star of magnitude 7.76, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 78947 10.0 light-years
- HIP 79969 12.3 light-years
- HIP 78551 13.8 light-years
- HIP 81237 15.0 light-years
- HIP 79658 15.4 light-years
- HIP 78708 15.4 light-years
- HIP 78430 15.5 light-years
- HIP 79377 16.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.