Star · ?
GJ 3405B
GJ 3405B is a main-sequence star of spectral type ? in the constellation Monoceros, 51.0 light-years from the Sun.
| Constellation | Monoceros |
|---|---|
| Distance | 51.0 light-years (15.6 pc) |
| Apparent magnitude | magnitude 13.33 |
| Absolute magnitude | magnitude 12.36 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.00439 L☉ |
| Radius | 0.166 R☉ |
| Mass | 0.179 M☉ (estimated) |
| Right ascension (J2000) | 6h 42m 14.0s |
| Declination (J2000) | +3° 35′ 30″ |
| Space velocity (relative to the Sun) | 20.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.33. Visible from the whole Northern Hemisphere and south to latitude 86° S. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1975. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 904 thousand years.
The Sun seen from there
From a planet around GJ 3405B, the Sun would look like a star of magnitude 5.80, in the direction where our sky has the constellation Aquila. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3404A 1.53 light-years
- WISE J064336.71-022315.4 7.19 light-years
- GJ 3410 8.21 light-years
- WISE J061437.73+095135.0 8.22 light-years
- GJ 3398 10.2 light-years
- HIP 28936 10.3 light-years
- WISE J064528.38-030248.2 11.4 light-years
- Gl 231.3 11.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.