Star · M4V
ULAS J135556.12+085054.3
ULAS J135556.12+085054.3 is a main-sequence star of spectral type M4V in the constellation Boötes, 208.7 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 208.7 light-years (64.0 pc) |
| Apparent magnitude | magnitude 22.80 |
| Absolute magnitude | magnitude 18.77 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 4.88 × 10⁻⁵ L☉ |
| Radius | 0.0263 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 13h 55m 56.2s |
| Declination (J2000) | +8° 50′ 55″ |
| Space velocity (relative to the Sun) | 15.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.80. Visible from the whole Northern Hemisphere and south to latitude 81° S. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1817. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.7 million years.
The Sun seen from there
From a planet around ULAS J135556.12+085054.3, the Sun would look like a star of magnitude 8.86, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 67379 7.69 light-years
- HIP 69359 15.5 light-years
- HIP 67115 16.2 light-years
- HIP 67186 16.3 light-years
- HIP 68707 16.4 light-years
- HIP 69160 19.7 light-years
- HIP 67377 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.