Star · G8V
Gl 641
Gl 641 is a main-sequence star of spectral type G8V in the constellation Ophiuchus, 54.8 light-years from the Sun.
| Other names | HIP 82588 |
|---|---|
| Constellation | Ophiuchus |
| Distance | 54.8 light-years (16.8 pc) |
| Apparent magnitude | magnitude 6.65 |
| Absolute magnitude | magnitude 5.52 |
| Spectral type | G8V |
| Surface temperature | 5,440 K |
| Luminosity | 0.621 L☉ |
| Radius | 0.887 R☉ |
| Mass | 0.888 M☉ (estimated) |
| Right ascension (J2000) | 16h 52m 58.8s |
| Declination (J2000) | −0° 01′ 36″ |
| Space velocity (relative to the Sun) | 138.6 km/s |
In the sky
Too faint for the naked eye (magnitude 6.65); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 90° N. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1971. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 973 thousand years.
The Sun seen from there
From a planet around Gl 641, the Sun would look like a star of magnitude 5.96, in the direction where our sky has the constellation Orion. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.