Star · M4V
SDSS J082239.18+511222.7
SDSS J082239.18+511222.7 is a main-sequence star of spectral type M4V in the constellation Lynx, 277.2 light-years from the Sun.
| Constellation | Lynx |
|---|---|
| Distance | 277.2 light-years (85.0 pc) |
| Apparent magnitude | magnitude 22.67 |
| Absolute magnitude | magnitude 18.02 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 9.70 × 10⁻⁵ L☉ |
| Radius | 0.0371 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 8h 22m 39.2s |
| Declination (J2000) | +51° 12′ 23″ |
| Space velocity (relative to the Sun) | 130.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.67. Visible from the whole Northern Hemisphere and south to latitude 39° S. North of latitude 39° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1749. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.9 million years.
The Sun seen from there
From a planet around SDSS J082239.18+511222.7, the Sun would look like a star of magnitude 9.48, in the direction where our sky has the constellation Telescopium. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J082213.75+510120.2 9.83 light-years
- HIP 40402 10.9 light-years
- HIP 40190 11.3 light-years
- HIP 42372 15.8 light-years
- HIP 41267 16.2 light-years
- HIP 39295 17.1 light-years
- HIP 40071 17.8 light-years
- HIP 40041 19.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.