Star · M4V
CWISEP J213249.05+690113.7
CWISEP J213249.05+690113.7 is a main-sequence star of spectral type M4V in the constellation Cepheus, 52.2 light-years from the Sun.
| Constellation | Cepheus |
|---|---|
| Distance | 52.2 light-years (16.0 pc) |
| Apparent magnitude | magnitude 26.95 |
| Absolute magnitude | magnitude 25.93 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 6.67 × 10⁻⁸ L☉ |
| Radius | 9.72 × 10⁻⁴ R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 32m 48.6s |
| Declination (J2000) | +69° 01′ 11″ |
| Space velocity (relative to the Sun) | 20.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.95. Visible from the whole Northern Hemisphere and south to latitude 21° S. North of latitude 21° N it never sets. 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 1974. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 926 thousand years.
The Sun seen from there
From a planet around CWISEP J213249.05+690113.7, the Sun would look like a star of magnitude 5.85, in the direction where our sky has the constellation Carina. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- G 264-012 2.34 light-years
- WISE J223720.39+722833.8 6.61 light-years
- Alderamin 6.61 light-years
- 2MASS J21265916+7617440 6.82 light-years
- GJ 4312 7.82 light-years
- GJ 4267 7.83 light-years
- Gl 788 8.51 light-years
- GJ 1254 8.62 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.