Star · M4V
ULAS J154427.34+081926.6
ULAS J154427.34+081926.6 is a main-sequence star of spectral type M4V in the constellation Serpens, 166.3 light-years from the Sun.
| Constellation | Serpens |
|---|---|
| Distance | 166.3 light-years (51.0 pc) |
| Apparent magnitude | magnitude 26.03 |
| Absolute magnitude | magnitude 22.49 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.58 × 10⁻⁶ L☉ |
| Radius | 0.00473 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 44m 27.3s |
| Declination (J2000) | +8° 19′ 22″ |
| Space velocity (relative to the Sun) | 14.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.03. Visible from the whole Northern Hemisphere and south to latitude 82° S. It stands highest at midnight in May, 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 J154427.34+081926.6, the Sun would look like a star of magnitude 8.37, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J154502.87+061807.8 8.86 light-years
- HIP 75971 9.82 light-years
- ULAS J152912.23+092228.5 13.3 light-years
- HIP 76543 13.9 light-years
- HIP 75964 14.2 light-years
- HIP 77226 14.4 light-years
- HIP 76058 15.4 light-years
- HIP 77210 16.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.