Star · M4V
ULAS J231835.51-001330.0
ULAS J231835.51-001330.0 is a main-sequence star of spectral type M4V in the constellation Pisces, 221.8 light-years from the Sun.
| Constellation | Pisces |
|---|---|
| Distance | 221.8 light-years (68.0 pc) |
| Apparent magnitude | magnitude 26.34 |
| Absolute magnitude | magnitude 22.18 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.11 × 10⁻⁶ L☉ |
| Radius | 0.00547 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 18m 35.6s |
| Declination (J2000) | −0° 13′ 29″ |
| Space velocity (relative to the Sun) | 43.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.34. Visible from the whole Southern Hemisphere and north to latitude 90° N. 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 1804. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.9 million years.
The Sun seen from there
From a planet around ULAS J231835.51-001330.0, the Sun would look like a star of magnitude 8.99, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 115572 9.71 light-years
- HIP 114576 12.7 light-years
- 14 Psc 15.9 light-years
- HIP 113770 16.8 light-years
- HIP 114573 16.8 light-years
- HIP 115190 17.1 light-years
- HIP 115213 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.