Star · K7V
GJ 3608A
GJ 3608A is a main-sequence star of spectral type K7V in the constellation Hydra, 75.9 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 75.9 light-years (23.3 pc) |
| Apparent magnitude | magnitude 10.68 |
| Absolute magnitude | magnitude 8.85 |
| Spectral type | K7V |
| Surface temperature | 3,980 K |
| Luminosity | 0.0721 L☉ |
| Radius | 0.564 R☉ |
| Mass | 0.518 M☉ (estimated) |
| Right ascension (J2000) | 10h 31m 03.6s |
| Declination (J2000) | −21° 38′ 40″ |
| Space velocity (relative to the Sun) | 45.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.68. Visible from the whole Southern Hemisphere and north to latitude 68° N. South of latitude 68° S it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1950. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around GJ 3608A, the Sun would look like a star of magnitude 6.66, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- DENIS J1019245-270717 8.05 light-years
- WISE J103907.73-160002.9 8.56 light-years
- GJ 3620 8.69 light-years
- HIP 52369 11.3 light-years
- HD 90156 11.3 light-years
- GJ 3615 11.6 light-years
- HIP 51928 13.1 light-years
- GJ 1143B 13.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.