Star · M0V
WISE J231921.92+764544.4
WISE J231921.92+764544.4 is a main-sequence star of spectral type M0V in the constellation Cepheus, 82.2 light-years from the Sun.
| Constellation | Cepheus |
|---|---|
| Distance | 82.2 light-years (25.2 pc) |
| Apparent magnitude | magnitude 21.85 |
| Absolute magnitude | magnitude 19.84 |
| Spectral type | M0V |
| Surface temperature | 3,690 K |
| Luminosity | 4.19 × 10⁻⁶ L☉ |
| Radius | 0.005 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 19m 22.3s |
| Declination (J2000) | +76° 45′ 45″ |
| Space velocity (relative to the Sun) | 25.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.85. Visible from the whole Northern Hemisphere and south to latitude 13° S. North of latitude 13° N it never sets.
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 1.5 million years.
The Sun seen from there
From a planet around WISE J231921.92+764544.4, the Sun would look like a star of magnitude 6.84, in the direction where our sky has the constellation Chamaeleon. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 56.4 10.1 light-years
- WISE J213512.63+731236.8 11.0 light-years
- 2MASS J23140244+6939368 11.6 light-years
- GJ 1266 12.5 light-years
- Gl 842.2 12.6 light-years
- GJ 4307 12.9 light-years
- HIP 109980 14.0 light-years
- Gl 828.5 14.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.