Star · M4V
ULAS J232715.67+151729.5
ULAS J232715.67+151729.5 is a main-sequence star of spectral type M4V in the constellation Pegasus, 150.0 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 150.0 light-years (46.0 pc) |
| Apparent magnitude | magnitude 21.79 |
| Absolute magnitude | magnitude 18.48 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 6.39 × 10⁻⁵ L☉ |
| Radius | 0.0301 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 27m 15.7s |
| Declination (J2000) | +15° 17′ 31″ |
| Space velocity (relative to the Sun) | 38.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.79. Visible from the whole Northern Hemisphere and south to latitude 75° S. North of latitude 75° 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 1876. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.7 million years.
The Sun seen from there
From a planet around ULAS J232715.67+151729.5, the Sun would look like a star of magnitude 8.14, in the direction where our sky has the constellation Crater. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 114670 8.50 light-years
- HIP 116277 11.4 light-years
- PSO J353.6355+13.2209 12.0 light-years
- HIP 116907 13.4 light-years
- 2MASS J23313131+2041273 17.0 light-years
- ULAS J235204.62+124444.9 17.2 light-years
- SIMP J23094559+1003122 17.7 light-years
- HIP 117846 18.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.