Star · M4V
USco J161302.32-212428.4
USco J161302.32-212428.4 is a main-sequence star of spectral type M4V in the constellation Scorpius, 391.4 light-years from the Sun.
| Constellation | Scorpius |
|---|---|
| Distance | 391.4 light-years (120.0 pc) |
| Apparent magnitude | magnitude 22.66 |
| Absolute magnitude | magnitude 17.26 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.95 × 10⁻⁴ L☉ |
| Radius | 0.0526 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 13m 02.3s |
| Declination (J2000) | −21° 24′ 28″ |
| Space velocity (relative to the Sun) | 14.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.66. Visible from the whole Southern Hemisphere and north to latitude 69° N. South of latitude 69° S it never sets. 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 1635. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.9 million years.
The Sun seen from there
From a planet around USco J161302.32-212428.4, the Sun would look like a star of magnitude 10.23, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.