Star · M4V
2MASS J16123860+3126489
2MASS J16123860+3126489 is a main-sequence star of spectral type M4V in the constellation Corona Borealis, 212.0 light-years from the Sun.
| Constellation | Corona Borealis |
|---|---|
| Distance | 212.0 light-years (65.0 pc) |
| Apparent magnitude | magnitude 22.14 |
| Absolute magnitude | magnitude 18.08 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 9.24 × 10⁻⁵ L☉ |
| Radius | 0.0362 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 12m 38.6s |
| Declination (J2000) | +31° 26′ 49″ |
| Space velocity (relative to the Sun) | 23.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.14. Visible from the whole Northern Hemisphere and south to latitude 59° S. North of latitude 59° N 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 1814. 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 2MASS J16123860+3126489, the Sun would look like a star of magnitude 8.89, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ULAS J161938.12+300756.4 8.02 light-years
- HIP 78700 8.04 light-years
- HIP 80279 12.0 light-years
- HIP 78161 12.4 light-years
- SDSS J160743.08+345947.4 14.3 light-years
- HIP 79677 15.7 light-years
- HIP 78015 17.6 light-years
- HIP 80118 17.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.