Star · M4V
ULAS J223756.91+071656.8
ULAS J223756.91+071656.8 is a main-sequence star of spectral type M4V in the constellation Pegasus, 133.7 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 133.7 light-years (41.0 pc) |
| Apparent magnitude | magnitude 22.99 |
| Absolute magnitude | magnitude 19.93 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.68 × 10⁻⁵ L☉ |
| Radius | 0.0154 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 22h 37m 57.0s |
| Declination (J2000) | +7° 16′ 57″ |
| Space velocity (relative to the Sun) | 33.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.99. Visible from the whole Northern Hemisphere and south to latitude 83° S. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1892. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.4 million years.
The Sun seen from there
From a planet around ULAS J223756.91+071656.8, the Sun would look like a star of magnitude 7.89, in the direction where our sky has the constellation Sextans. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 111932 2.24 light-years
- HIP 111808 8.84 light-years
- GJ 9782B 9.43 light-years
- 34 Peg 9.72 light-years
- HIP 112229 9.78 light-years
- HIP 111473 11.0 light-years
- GJ 1272A 13.1 light-years
- ULAS J223728.91+064220.1 13.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.