Star · M4V
ULAS J093930.74+065309.8
ULAS J093930.74+065309.8 is a main-sequence star of spectral type M4V in the constellation Leo, 166.3 light-years from the Sun.
| Constellation | Leo |
|---|---|
| Distance | 166.3 light-years (51.0 pc) |
| Apparent magnitude | magnitude 22.28 |
| Absolute magnitude | magnitude 18.74 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 5.00 × 10⁻⁵ L☉ |
| Radius | 0.0266 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 9h 39m 30.8s |
| Declination (J2000) | +6° 53′ 10″ |
| Space velocity (relative to the Sun) | 27.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.28. Visible from the whole Northern Hemisphere and south to latitude 83° S. 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 1860. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.0 million years.
The Sun seen from there
From a planet around ULAS J093930.74+065309.8, the Sun would look like a star of magnitude 8.37, 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 47282 8.79 light-years
- ULAS J095126.87+075756.8 9.14 light-years
- SDSS J094134.92+100942.0 9.99 light-years
- HIP 46367 11.9 light-years
- SDSS J092142.52+084202.7 14.0 light-years
- HIP 48412 14.3 light-years
- HIP 47058 15.6 light-years
- 4 Sex 16.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.