Star · M4V
ULAS J154701.84+005320.3
ULAS J154701.84+005320.3 is a main-sequence star of spectral type M4V in the constellation Serpens, 127.2 light-years from the Sun.
| Constellation | Serpens |
|---|---|
| Distance | 127.2 light-years (39.0 pc) |
| Apparent magnitude | magnitude 25.82 |
| Absolute magnitude | magnitude 22.86 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.12 × 10⁻⁶ L☉ |
| Radius | 0.00399 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 47m 01.8s |
| Declination (J2000) | +0° 53′ 21″ |
| Space velocity (relative to the Sun) | 14.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 25.82. Visible from the whole Northern Hemisphere and south to latitude 89° 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 1899. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around ULAS J154701.84+005320.3, the Sun would look like a star of magnitude 7.79, 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 J154727.23+033636.3 7.31 light-years
- HIP 78024 8.55 light-years
- HIP 77749 8.63 light-years
- 10 Ser 11.1 light-years
- HIP 76280 14.9 light-years
- HIP 77292 15.9 light-years
- HIP 75101 18.2 light-years
- SDSS J155526.15+001720.6 18.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.