Star · M8
GJ 3655
GJ 3655 is a main-sequence star of spectral type M8 in the constellation Crater, 46.8 light-years from the Sun.
| Constellation | Crater |
|---|---|
| Distance | 46.8 light-years (14.4 pc) |
| Apparent magnitude | magnitude 19.57 |
| Absolute magnitude | magnitude 18.79 |
| Spectral type | M8 |
| Surface temperature | 3,710 K |
| Luminosity | 1.09 × 10⁻⁵ L☉ |
| Radius | 0.008 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 11h 21m 49.3s |
| Declination (J2000) | −13° 13′ 06″ |
| Space velocity (relative to the Sun) | 44.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 19.57. Visible from the whole Southern Hemisphere and north to latitude 77° N. South of latitude 77° S 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 1979. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 830 thousand years.
The Sun seen from there
From a planet around GJ 3655, the Sun would look like a star of magnitude 5.61, in the direction where our sky has the constellation Pegasus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 56157 5.25 light-years
- WISE J105553.59-165216.3 6.01 light-years
- Gl 425A 6.13 light-years
- Gl 425B 6.93 light-years
- WISE J105257.95-194250.2 7.92 light-years
- GJ 1140 9.22 light-years
- Gl 454 9.22 light-years
- GJ 3668 9.51 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.