Star · M4V
CFBDSIR J214947.2-040308.9
CFBDSIR J214947.2-040308.9 is a main-sequence star of spectral type M4V in the constellation Aquarius, 179.4 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 179.4 light-years (55.0 pc) |
| Apparent magnitude | magnitude 26.98 |
| Absolute magnitude | magnitude 23.28 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 7.67 × 10⁻⁷ L☉ |
| Radius | 0.0033 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 49m 46.8s |
| Declination (J2000) | −4° 03′ 06″ |
| Space velocity (relative to the Sun) | 43.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.98. Visible from the whole Southern Hemisphere and north to latitude 86° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1847. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.2 million years.
The Sun seen from there
From a planet around CFBDSIR J214947.2-040308.9, the Sun would look like a star of magnitude 8.53, in the direction where our sky has the constellation Sextans. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 108438 8.19 light-years
- HIP 108453 8.57 light-years
- CFBDS J214139.77-033739.0 14.7 light-years
- Bunda 15.1 light-years
- HIP 107395 15.3 light-years
- HIP 106510 18.2 light-years
- HIP 107001 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.