Star · M4V
WISE J235716.49+122741.8
WISE J235716.49+122741.8 is a main-sequence star of spectral type M4V in the constellation Pegasus, 52.5 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 52.5 light-years (16.1 pc) |
| Apparent magnitude | magnitude 24.02 |
| Absolute magnitude | magnitude 22.99 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.00 × 10⁻⁶ L☉ |
| Radius | 0.00377 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 57m 16.5s |
| Declination (J2000) | +12° 27′ 46″ |
| Space velocity (relative to the Sun) | 39.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.02. Visible from the whole Northern Hemisphere and south to latitude 78° S. North of latitude 78° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1973. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 932 thousand years.
The Sun seen from there
From a planet around WISE J235716.49+122741.8, the Sun would look like a star of magnitude 5.86, in the direction where our sky has the constellation Corvus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.