Star · M4V
CFBDS J203841.41-185012.3
CFBDS J203841.41-185012.3 is a main-sequence star of spectral type M4V in the constellation Capricornus, 316.4 light-years from the Sun.
| Constellation | Capricornus |
|---|---|
| Distance | 316.4 light-years (97.0 pc) |
| Apparent magnitude | magnitude 28.93 |
| Absolute magnitude | magnitude 24.00 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.96 × 10⁻⁷ L☉ |
| Radius | 0.00237 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 20h 38m 41.3s |
| Declination (J2000) | −18° 50′ 11″ |
| Space velocity (relative to the Sun) | 114.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 28.93. Visible from the whole Southern Hemisphere and north to latitude 71° N. South of latitude 71° S it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1710. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.6 million years.
The Sun seen from there
From a planet around CFBDS J203841.41-185012.3, the Sun would look like a star of magnitude 9.76, in the direction where our sky has the constellation Cancer. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 102026 15.4 light-years
- HIP 101190 18.6 light-years
- HIP 100817 18.9 light-years
- HIP 102515 19.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.