Star · M4V
ULAS J231856.24+043328.5
ULAS J231856.24+043328.5 is a main-sequence star of spectral type M4V in the constellation Pisces, 107.6 light-years from the Sun.
| Constellation | Pisces |
|---|---|
| Distance | 107.6 light-years (33.0 pc) |
| Apparent magnitude | magnitude 26.28 |
| Absolute magnitude | magnitude 23.69 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 5.26 × 10⁻⁷ L☉ |
| Radius | 0.00273 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 18m 56.2s |
| Declination (J2000) | +4° 33′ 28″ |
| Space velocity (relative to the Sun) | 4.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.28. Visible from the whole Northern Hemisphere and south to latitude 85° S. 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 1918. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around ULAS J231856.24+043328.5, the Sun would look like a star of magnitude 7.42, 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 115112 1.82 light-years
- WISEA J232307.08+054113.0 2.89 light-years
- HIP 114294 6.04 light-years
- HIP 114834 6.33 light-years
- ULAS J232315.39+071931.0 6.53 light-years
- WISEA J233333.46+025128.4 8.34 light-years
- 16 Psc 9.43 light-years
- HIP 115381 10.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.