Star · M4V
SDSS J125230.79+183506.0
SDSS J125230.79+183506.0 is a main-sequence star of spectral type M4V in the constellation Coma Berenices, 185.9 light-years from the Sun.
| Constellation | Coma Berenices |
|---|---|
| Distance | 185.9 light-years (57.0 pc) |
| Apparent magnitude | magnitude 21.81 |
| Absolute magnitude | magnitude 18.03 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 9.63 × 10⁻⁵ L☉ |
| Radius | 0.0369 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 52m 30.8s |
| Declination (J2000) | +18° 35′ 06″ |
| Space velocity (relative to the Sun) | 25.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.81. Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° 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 1840. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.3 million years.
The Sun seen from there
From a planet around SDSS J125230.79+183506.0, the Sun would look like a star of magnitude 8.61, 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):
- HIP 63172 3.25 light-years
- HIP 62438 3.99 light-years
- HIP 62860 4.51 light-years
- HIP 64140 14.7 light-years
- HIP 62249 16.1 light-years
- HIP 63330 17.0 light-years
- HIP 61816 17.5 light-years
- HIP 61490 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.