Star · M4V
ULAS J213352.64-010343.4
ULAS J213352.64-010343.4 is a main-sequence star of spectral type M4V in the constellation Aquarius, 257.7 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 257.7 light-years (79.0 pc) |
| Apparent magnitude | magnitude 26.30 |
| Absolute magnitude | magnitude 21.81 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.96 × 10⁻⁶ L☉ |
| Radius | 0.00648 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 33m 52.6s |
| Declination (J2000) | −1° 03′ 44″ |
| Space velocity (relative to the Sun) | 39.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.30. Visible from the whole Southern Hemisphere and north to latitude 89° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1768. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.6 million years.
The Sun seen from there
From a planet around ULAS J213352.64-010343.4, the Sun would look like a star of magnitude 9.32, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 106601 10.4 light-years
- 25 Aqr 19.2 light-years
- HIP 107799 19.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.