Star · M4V
SDSS J125459.33+263107.2
SDSS J125459.33+263107.2 is a main-sequence star of spectral type M4V in the constellation Coma Berenices, 254.4 light-years from the Sun.
| Constellation | Coma Berenices |
|---|---|
| Distance | 254.4 light-years (78.0 pc) |
| Apparent magnitude | magnitude 22.33 |
| Absolute magnitude | magnitude 17.87 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.12 × 10⁻⁴ L☉ |
| Radius | 0.0398 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 54m 59.3s |
| Declination (J2000) | +26° 31′ 07″ |
| Space velocity (relative to the Sun) | 10.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.33. Visible from the whole Northern Hemisphere and south to latitude 63° S. North of latitude 63° 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 1772. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.5 million years.
The Sun seen from there
From a planet around SDSS J125459.33+263107.2, the Sun would look like a star of magnitude 9.29, in the direction where our sky has the constellation Sculptor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 62507 8.42 light-years
- HIP 62129 12.7 light-years
- HIP 62424 14.9 light-years
- HIP 63320 15.3 light-years
- HIP 63405 16.8 light-years
- SDSS J125437.60+293832.7 19.5 light-years
- ULAS J125359.78+265855.5 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.