Star · M4V
CWISE J201342.27-032643.7
CWISE J201342.27-032643.7 is a main-sequence star of spectral type M4V in the constellation Aquila, 81.5 light-years from the Sun.
| Constellation | Aquila |
|---|---|
| Distance | 81.5 light-years (25.0 pc) |
| Apparent magnitude | magnitude 25.74 |
| Absolute magnitude | magnitude 23.75 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 4.96 × 10⁻⁷ L☉ |
| Radius | 0.00265 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 20h 13m 43.0s |
| Declination (J2000) | −3° 26′ 34″ |
| Space velocity (relative to the Sun) | 106.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 25.74. Visible from the whole Southern Hemisphere and north to latitude 87° N. 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 1944. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around CWISE J201342.27-032643.7, the Sun would look like a star of magnitude 6.82, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 99916 5.63 light-years
- HIP 100133 8.79 light-years
- HIP 101345 11.2 light-years
- GJ 4140 12.0 light-years
- GJ 4159 12.5 light-years
- GJ 4136 12.9 light-years
- GJ 4164 13.5 light-years
- WISE J201404.13+042408.5 14.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.