Star · M3V
SDSS J112912.12+380612.2
SDSS J112912.12+380612.2 is a main-sequence star of spectral type M3V in the constellation Ursa Major, 152.9 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 152.9 light-years (46.9 pc) |
| Apparent magnitude | magnitude 21.97 |
| Absolute magnitude | magnitude 18.61 |
| Spectral type | M3V |
| Surface temperature | 3,190 K |
| Luminosity | 3.29 × 10⁻⁵ L☉ |
| Radius | 0.0188 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 11h 29m 12.3s |
| Declination (J2000) | +38° 06′ 12″ |
| Space velocity (relative to the Sun) | 42.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.97. Visible from the whole Northern Hemisphere and south to latitude 52° S. North of latitude 52° 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 1873. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.7 million years.
The Sun seen from there
From a planet around SDSS J112912.12+380612.2, the Sun would look like a star of magnitude 8.19, in the direction where our sky has the constellation Sculptor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 56229 11.4 light-years
- HIP 55406 13.2 light-years
- HIP 56145 15.2 light-years
- HIP 54692 15.6 light-years
- HIP 54681 15.6 light-years
- HIP 58287 15.8 light-years
- 59 UMa 16.6 light-years
- HIP 54210 17.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.