Star · K8V
SDSS J100236.25+460420.4
SDSS J100236.25+460420.4 is a main-sequence star of spectral type K8V in the constellation Ursa Major, 231.7 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 231.7 light-years (71.0 pc) |
| Apparent magnitude | magnitude 21.59 |
| Absolute magnitude | magnitude 17.33 |
| Spectral type | K8V |
| Surface temperature | 3,880 K |
| Luminosity | 3.29 × 10⁻⁵ L☉ |
| Radius | 0.0127 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 10h 02m 36.2s |
| Declination (J2000) | +46° 04′ 20″ |
| Space velocity (relative to the Sun) | 25.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.59. Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° N it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1794. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.1 million years.
The Sun seen from there
From a planet around SDSS J100236.25+460420.4, the Sun would look like a star of magnitude 9.09, in the direction where our sky has the constellation Grus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 48804 4.02 light-years
- TIC 88692598 13.2 light-years
- HIP 49352 15.4 light-years
- HIP 47725 15.8 light-years
- HIP 50245 15.9 light-years
- HIP 49268 17.0 light-years
- Tania Borealis 17.4 light-years
- HIP 49447 17.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.