Star · M4V
ULAS J002136.01+155227.3
ULAS J002136.01+155227.3 is a main-sequence star of spectral type M4V in the constellation Pisces, 146.8 light-years from the Sun.
| Constellation | Pisces |
|---|---|
| Distance | 146.8 light-years (45.0 pc) |
| Apparent magnitude | magnitude 25.43 |
| Absolute magnitude | magnitude 22.16 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.14 × 10⁻⁶ L☉ |
| Radius | 0.00551 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 0h 21m 36.0s |
| Declination (J2000) | +15° 52′ 30″ |
| Space velocity (relative to the Sun) | 41.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 25.43. Visible from the whole Northern Hemisphere and south to latitude 74° S. North of latitude 74° 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 1879. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around ULAS J002136.01+155227.3, the Sun would look like a star of magnitude 8.10, in the direction where our sky has the constellation Corvus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 999 7.09 light-years
- HIP 1427 7.26 light-years
- ULAS J002827.56+142349.1 11.2 light-years
- HIP 2828 13.6 light-years
- HIP 3280 13.9 light-years
- 2MASS J00133470+1109403 14.9 light-years
- ULAS J000613.24+154020.7 15.9 light-years
- HIP 3551 16.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.