Star · M4V
ULAS J101618.77+000028.0
ULAS J101618.77+000028.0 is a main-sequence star of spectral type M4V in the constellation Sextans, 185.9 light-years from the Sun.
| Constellation | Sextans |
|---|---|
| Distance | 185.9 light-years (57.0 pc) |
| Apparent magnitude | magnitude 22.81 |
| Absolute magnitude | magnitude 19.03 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.84 × 10⁻⁵ L☉ |
| Radius | 0.0233 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 10h 16m 18.8s |
| Declination (J2000) | +0° 00′ 29″ |
| Space velocity (relative to the Sun) | 29.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.81. Visible from the whole Southern Hemisphere and north to latitude 90° N. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1840. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.3 million years.
The Sun seen from there
From a planet around ULAS J101618.77+000028.0, the Sun would look like a star of magnitude 8.61, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 49694 8.37 light-years
- 13 Sex 14.3 light-years
- SDSS J101951.13+044944.1 16.1 light-years
- ULAS J095829.86-003932.0 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.