Star · M2
Gl 690.1
Gl 690.1 is a main-sequence star of spectral type M2 in the constellation Ophiuchus, 66.3 light-years from the Sun.
| Constellation | Ophiuchus |
|---|---|
| Distance | 66.3 light-years (20.3 pc) |
| Apparent magnitude | magnitude 13.05 |
| Absolute magnitude | magnitude 11.51 |
| Spectral type | M2 |
| Surface temperature | 3,720 K |
| Luminosity | 0.00866 L☉ |
| Radius | 0.224 R☉ |
| Mass | 0.24 M☉ (estimated) |
| Right ascension (J2000) | 17h 42m 32.1s |
| Declination (J2000) | −16° 38′ 31″ |
| Space velocity (relative to the Sun) | 67.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.05. Visible from the whole Southern Hemisphere and north to latitude 73° N. South of latitude 73° S it never sets. 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 1960. 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 Gl 690.1, the Sun would look like a star of magnitude 6.37, in the direction where our sky has the constellation Taurus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- DENIS-P J1745346-164053 2.33 light-years
- DENIS-P J1733423-165449 7.24 light-years
- GJ 4000B 9.17 light-years
- GJ 4023 9.87 light-years
- GJ 4008 10.7 light-years
- GJ 4007 10.7 light-years
- 2MASS J17065487-1314396 10.7 light-years
- 58 Oph 11.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.