Star · G2V
GJ 2069B
GJ 2069B is a main-sequence star of spectral type G2V in the constellation Cancer, 54.3 light-years from the Sun.
| Constellation | Cancer |
|---|---|
| Distance | 54.3 light-years (16.6 pc) |
| Apparent magnitude | magnitude 13.32 |
| Absolute magnitude | magnitude 12.21 |
| Spectral type | G2V |
| Surface temperature | 5,780 K |
| Luminosity | 0.00121 L☉ |
| Radius | 0.0347 R☉ |
| Mass | 0.102 M☉ (estimated) |
| Right ascension (J2000) | 8h 31m 37.8s |
| Declination (J2000) | +19° 24′ 00″ |
| Space velocity (relative to the Sun) | 22.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.32. Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1972. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 963 thousand years.
The Sun seen from there
From a planet around GJ 2069B, the Sun would look like a star of magnitude 5.94, in the direction where our sky has the constellation Capricornus. 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.