Star · M4V
SDSS J000646.81+151225.8
SDSS J000646.81+151225.8 is a main-sequence star of spectral type M4V in the constellation Pegasus, 131.4 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 131.4 light-years (40.3 pc) |
| Apparent magnitude | magnitude 21.72 |
| Absolute magnitude | magnitude 18.69 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 5.23 × 10⁻⁵ L☉ |
| Radius | 0.0272 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 0h 06m 46.8s |
| Declination (J2000) | +15° 12′ 26″ |
| Space velocity (relative to the Sun) | 12.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.72. Visible from the whole Northern Hemisphere and south to latitude 75° S. North of latitude 75° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1895. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around SDSS J000646.81+151225.8, the Sun would look like a star of magnitude 7.86, in the direction where our sky has the constellation Corvus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ULAS J000613.24+154020.7 2.54 light-years
- HIP 495 11.0 light-years
- HIP 493 11.4 light-years
- HIP 1389 12.2 light-years
- HIP 96 12.8 light-years
- HIP 999 13.0 light-years
- HIP 117336 13.0 light-years
- HIP 1055 13.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.