Star · M4V
2MASS J16184503-1321297
2MASS J16184503-1321297 is a main-sequence star of spectral type M4V in the constellation Scorpius, 149.1 light-years from the Sun.
| Constellation | Scorpius |
|---|---|
| Distance | 149.1 light-years (45.7 pc) |
| Apparent magnitude | magnitude 19.75 |
| Absolute magnitude | magnitude 16.45 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 4.13 × 10⁻⁴ L☉ |
| Radius | 0.0765 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 18m 45.0s |
| Declination (J2000) | −13° 21′ 30″ |
| Space velocity (relative to the Sun) | 29.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 19.75. Visible from the whole Southern Hemisphere and north to latitude 77° N. South of latitude 77° 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 1877. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around 2MASS J16184503-1321297, the Sun would look like a star of magnitude 8.13, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.