Star · M3V
2MASSW J1108307+683017
2MASSW J1108307+683017 is a main-sequence star of spectral type M3V in the constellation Ursa Major, 52.8 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 52.8 light-years (16.2 pc) |
| Apparent magnitude | magnitude 21.17 |
| Absolute magnitude | magnitude 20.12 |
| Spectral type | M3V |
| Surface temperature | 3,070 K |
| Luminosity | 1.09 × 10⁻⁵ L☉ |
| Radius | 0.0117 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 11h 08m 30.1s |
| Declination (J2000) | +68° 30′ 14″ |
| Space velocity (relative to the Sun) | 25.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.17. Visible from the whole Northern Hemisphere and south to latitude 21° S. North of latitude 21° N it never sets. 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 1973. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 936 thousand years.
The Sun seen from there
From a planet around 2MASSW J1108307+683017, the Sun would look like a star of magnitude 5.88, in the direction where our sky has the constellation Indus. 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.