Star · ?
GJ 3690B
GJ 3690B is a main-sequence star of spectral type ? in the constellation Virgo, 51.8 light-years from the Sun.
| Constellation | Virgo |
|---|---|
| Distance | 51.8 light-years (15.9 pc) |
| Apparent magnitude | magnitude 15.00 |
| Absolute magnitude | magnitude 14.00 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 9.73 × 10⁻⁴ L☉ |
| Radius | 0.0781 R☉ |
| Mass | 0.0929 M☉ (estimated) |
| Right ascension (J2000) | 11h 52m 18.1s |
| Declination (J2000) | +10° 01′ 01″ |
| Space velocity (relative to the Sun) | 25.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.00. Visible from the whole Northern Hemisphere and south to latitude 80° S. North of latitude 80° N it never sets. 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 1974. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 918 thousand years.
The Sun seen from there
From a planet around GJ 3690B, the Sun would look like a star of magnitude 5.83, in the direction where our sky has the constellation Aquarius. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3693 4.16 light-years
- ULAS J115239.94+113407.6 5.82 light-years
- GJ 3686B 8.84 light-years
- SDSSp J120358.19+001550.3 9.31 light-years
- 2MASS J12314753+0847331 9.85 light-years
- Gl 469 10.2 light-years
- Gl 471 10.7 light-years
- GJ 3666 11.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.