Star · M4V
ULAS J230424.80+130111.3
ULAS J230424.80+130111.3 is a main-sequence star of spectral type M4V in the constellation Pegasus, 163.1 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 163.1 light-years (50.0 pc) |
| Apparent magnitude | magnitude 22.24 |
| Absolute magnitude | magnitude 18.75 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 4.99 × 10⁻⁵ L☉ |
| Radius | 0.0266 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 04m 24.8s |
| Declination (J2000) | +13° 01′ 12″ |
| Space velocity (relative to the Sun) | 34.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.24. Visible from the whole Northern Hemisphere and south to latitude 77° S. North of latitude 77° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1863. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.9 million years.
The Sun seen from there
From a planet around ULAS J230424.80+130111.3, the Sun would look like a star of magnitude 8.32, in the direction where our sky has the constellation Crater. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 114171 11.6 light-years
- HIP 115066 12.9 light-years
- HIP 114670 15.9 light-years
- HIP 113894 17.2 light-years
- HIP 114088 17.4 light-years
- SIMP J23094559+1003122 17.8 light-years
- HIP 112073 18.5 light-years
- HIP 114061 18.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.