Star · M4V
ULAS J122343.35-013100.7
ULAS J122343.35-013100.7 is a main-sequence star of spectral type M4V in the constellation Virgo, 215.3 light-years from the Sun.
| Constellation | Virgo |
|---|---|
| Distance | 215.3 light-years (66.0 pc) |
| Apparent magnitude | magnitude 26.33 |
| Absolute magnitude | magnitude 22.23 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.01 × 10⁻⁶ L☉ |
| Radius | 0.00534 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 23m 43.6s |
| Declination (J2000) | −1° 30′ 58″ |
| Space velocity (relative to the Sun) | 56.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.33. Visible from the whole Southern Hemisphere and north to latitude 88° N. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1811. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.8 million years.
The Sun seen from there
From a planet around ULAS J122343.35-013100.7, the Sun would look like a star of magnitude 8.93, in the direction where our sky has the constellation Pisces. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 60749 8.31 light-years
- K2-257 9.73 light-years
- HIP 60194 13.7 light-years
- HIP 60645 13.8 light-years
- HIP 59843 14.5 light-years
- HIP 61608 15.4 light-years
- HIP 59164 17.3 light-years
- HIP 60987 17.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.