Star · M3V
2MASSW J1439284+192915
2MASSW J1439284+192915 is a main-sequence star of spectral type M3V in the constellation Boötes, 46.2 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 46.2 light-years (14.2 pc) |
| Apparent magnitude | magnitude 20.57 |
| Absolute magnitude | magnitude 19.81 |
| Spectral type | M3V |
| Surface temperature | 3,070 K |
| Luminosity | 1.45 × 10⁻⁵ L☉ |
| Radius | 0.0135 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 14h 39m 26.7s |
| Declination (J2000) | +19° 29′ 22″ |
| Space velocity (relative to the Sun) | 91.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 20.57. Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1980. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 820 thousand years.
The Sun seen from there
From a planet around 2MASSW J1439284+192915, the Sun would look like a star of magnitude 5.59, in the direction where our sky has the constellation Cetus. It would be visible 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.