Star · M4V
SDSS J142227.25+221557.1
SDSS J142227.25+221557.1 is a main-sequence star of spectral type M4V in the constellation Boötes, 156.6 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 156.6 light-years (48.0 pc) |
| Apparent magnitude | magnitude 22.56 |
| Absolute magnitude | magnitude 19.15 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.42 × 10⁻⁵ L☉ |
| Radius | 0.022 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 14h 22m 27.2s |
| Declination (J2000) | +22° 15′ 57″ |
| Space velocity (relative to the Sun) | 6.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.56. Visible from the whole Northern Hemisphere and south to latitude 68° S. North of latitude 68° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1869. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.8 million years.
The Sun seen from there
From a planet around SDSS J142227.25+221557.1, the Sun would look like a star of magnitude 8.24, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 550.1 9.07 light-years
- HIP 69985 9.43 light-years
- HIP 68547 13.8 light-years
- HIP 70520 14.8 light-years
- HIP 71899 14.9 light-years
- HIP 69230 16.6 light-years
- HIP 68785 19.0 light-years
- HIP 72116 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.