Star · ?
GJ 3685A
GJ 3685A is a main-sequence star of spectral type ? in the constellation Virgo, 61.4 light-years from the Sun.
| Constellation | Virgo |
|---|---|
| Distance | 61.4 light-years (18.8 pc) |
| Apparent magnitude | magnitude 13.25 |
| Absolute magnitude | magnitude 11.88 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.00686 L☉ |
| Radius | 0.207 R☉ |
| Mass | 0.217 M☉ (estimated) |
| Right ascension (J2000) | 11h 47m 40.7s |
| Declination (J2000) | +0° 15′ 15″ |
| Space velocity (relative to the Sun) | 29.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.25. Visible from the whole Southern Hemisphere and north to latitude 90° N. 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 1965. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.1 million years.
The Sun seen from there
From a planet around GJ 3685A, the Sun would look like a star of magnitude 6.20, in the direction where our sky has the constellation Pisces. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 83 Leo 6.56 light-years
- HD 99492 6.57 light-years
- GJ 3672 7.30 light-years
- ULAS J115508.39+044502.3 7.49 light-years
- Gl 452A 8.75 light-years
- Gl 452B 8.75 light-years
- 2MASS J12212770+0257198 9.46 light-years
- Gl 461A 9.55 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.