Star · M4V
WISEPC J215751.38+265931.4
WISEPC J215751.38+265931.4 is a main-sequence star of spectral type M4V in the constellation Pegasus, 53.2 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 53.2 light-years (16.3 pc) |
| Apparent magnitude | magnitude 24.81 |
| Absolute magnitude | magnitude 23.75 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 4.97 × 10⁻⁷ L☉ |
| Radius | 0.00265 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 57m 51.3s |
| Declination (J2000) | +26° 59′ 32″ |
| Space velocity (relative to the Sun) | 9.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.81. Visible from the whole Northern Hemisphere and south to latitude 63° S. North of latitude 63° 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 1973. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 943 thousand years.
The Sun seen from there
From a planet around WISEPC J215751.38+265931.4, the Sun would look like a star of magnitude 5.89, in the direction where our sky has the constellation Hydra. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 4225 2.80 light-years
- 2MASS J22153705+2110554 7.36 light-years
- Gl 856B 7.73 light-years
- Gl 856A 7.81 light-years
- TYC 2187-512-1 8.61 light-years
- GJ 4186B 9.17 light-years
- Gl 844 9.76 light-years
- CWISEP J223022.60+254907.5 9.82 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.