Star · M4V
SDSS J094427.31+641037.3
SDSS J094427.31+641037.3 is a main-sequence star of spectral type M4V in the constellation Ursa Major, 309.9 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 309.9 light-years (95.0 pc) |
| Apparent magnitude | magnitude 22.17 |
| Absolute magnitude | magnitude 17.28 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.92 × 10⁻⁴ L☉ |
| Radius | 0.0522 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 9h 44m 27.3s |
| Declination (J2000) | +64° 10′ 37″ |
| Space velocity (relative to the Sun) | 15.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.17. Visible from the whole Northern Hemisphere and south to latitude 26° S. North of latitude 26° 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 1716. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.5 million years.
The Sun seen from there
From a planet around SDSS J094427.31+641037.3, the Sun would look like a star of magnitude 9.72, in the direction where our sky has the constellation Indus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 47032 7.33 light-years
- HIP 48678 13.1 light-years
- HIP 45775 19.6 light-years
- HIP 48266 19.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.