Star · K2V
SDSS J105649.79+232841.7
SDSS J105649.79+232841.7 is a main-sequence star of spectral type K2V in the constellation Leo, 217.6 light-years from the Sun.
| Constellation | Leo |
|---|---|
| Distance | 217.6 light-years (66.7 pc) |
| Apparent magnitude | magnitude 20.81 |
| Absolute magnitude | magnitude 16.69 |
| Spectral type | K2V |
| Surface temperature | 4,900 K |
| Luminosity | 2.61 × 10⁻⁵ L☉ |
| Radius | 0.00709 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 10h 56m 49.7s |
| Declination (J2000) | +23° 28′ 42″ |
| Space velocity (relative to the Sun) | 45.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 20.81. Visible from the whole Northern Hemisphere and south to latitude 67° S. North of latitude 67° 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 1808. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.9 million years.
The Sun seen from there
From a planet around SDSS J105649.79+232841.7, the Sun would look like a star of magnitude 8.95, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 53337 10.6 light-years
- HIP 54063 11.3 light-years
- 2MASS J10551343+2504028 15.4 light-years
- HIP 53916 16.0 light-years
- HIP 54191 16.1 light-years
- HIP 54196 18.4 light-years
- HIP 52491 18.9 light-years
- HIP 52761 19.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.