Star · M0V
SDSS J121950.20+654136.5
SDSS J121950.20+654136.5 is a main-sequence star of spectral type M0V in the constellation Draco, 244.1 light-years from the Sun.
| Constellation | Draco |
|---|---|
| Distance | 244.1 light-years (74.9 pc) |
| Apparent magnitude | magnitude 21.56 |
| Absolute magnitude | magnitude 17.19 |
| Spectral type | M0V |
| Surface temperature | 3,610 K |
| Luminosity | 5.45 × 10⁻⁵ L☉ |
| Radius | 0.0188 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 19m 50.1s |
| Declination (J2000) | +65° 41′ 37″ |
| Space velocity (relative to the Sun) | 49.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.56. Visible from the whole Northern Hemisphere and south to latitude 24° S. North of latitude 24° 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 1782. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.3 million years.
The Sun seen from there
From a planet around SDSS J121950.20+654136.5, the Sun would look like a star of magnitude 9.20, in the direction where our sky has the constellation Tucana. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J115250.06+643252.5 13.1 light-years
- HIP 59205 15.7 light-years
- HIP 62839 15.8 light-years
- HIP 61875 16.0 light-years
- HIP 59094 16.9 light-years
- HIP 57679 16.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.