Star · M1V
SDSS J125108.28+155911.1
SDSS J125108.28+155911.1 is a main-sequence star of spectral type M1V in the constellation Coma Berenices, 239.3 light-years from the Sun.
| Constellation | Coma Berenices |
|---|---|
| Distance | 239.3 light-years (73.4 pc) |
| Apparent magnitude | magnitude 21.84 |
| Absolute magnitude | magnitude 17.51 |
| Spectral type | M1V |
| Surface temperature | 3,410 K |
| Luminosity | 5.74 × 10⁻⁵ L☉ |
| Radius | 0.0217 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 51m 08.3s |
| Declination (J2000) | +15° 59′ 11″ |
| Space velocity (relative to the Sun) | 10.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.84. Visible from the whole Northern Hemisphere and south to latitude 74° S. North of latitude 74° 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 1787. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.2 million years.
The Sun seen from there
From a planet around SDSS J125108.28+155911.1, the Sun would look like a star of magnitude 9.16, 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):
- SDSS J125645.82+151443.7 10.8 light-years
- HIP 63509 11.8 light-years
- HIP 62198 12.2 light-years
- HIP 63239 13.0 light-years
- HIP 61662 13.8 light-years
- 34 Vir 17.3 light-years
- HIP 62751 18.3 light-years
- HIP 61917 18.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.