Star · M4V
ULAS J235715.98+013240.3
ULAS J235715.98+013240.3 is a main-sequence star of spectral type M4V in the constellation Pisces, 205.5 light-years from the Sun.
| Constellation | Pisces |
|---|---|
| Distance | 205.5 light-years (63.0 pc) |
| Apparent magnitude | magnitude 26.00 |
| Absolute magnitude | magnitude 22.00 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.48 × 10⁻⁶ L☉ |
| Radius | 0.00593 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 57m 15.9s |
| Declination (J2000) | +1° 32′ 40″ |
| Space velocity (relative to the Sun) | 14.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.00. Visible from the whole Northern Hemisphere and south to latitude 88° 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 1821. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.6 million years.
The Sun seen from there
From a planet around ULAS J235715.98+013240.3, the Sun would look like a star of magnitude 8.83, in the direction where our sky has the constellation Virgo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 93 7.15 light-years
- HIP 6 11.1 light-years
- HIP 118159 11.5 light-years
- HIP 118156 13.1 light-years
- SDSS J234406.88+011515.6 15.1 light-years
- HIP 159 16.4 light-years
- HIP 116454 19.6 light-years
- HIP 117445 20.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.