Star · M0V
SDSS J124036.81+152517.1
SDSS J124036.81+152517.1 is a main-sequence star of spectral type M0V in the constellation Coma Berenices, 206.0 light-years from the Sun.
| Constellation | Coma Berenices |
|---|---|
| Distance | 206.0 light-years (63.2 pc) |
| Apparent magnitude | magnitude 21.42 |
| Absolute magnitude | magnitude 17.42 |
| Spectral type | M0V |
| Surface temperature | 3,680 K |
| Luminosity | 3.96 × 10⁻⁵ L☉ |
| Radius | 0.0155 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 40m 36.8s |
| Declination (J2000) | +15° 25′ 17″ |
| Space velocity (relative to the Sun) | 73.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.42. 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 March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1820. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.7 million years.
The Sun seen from there
From a planet around SDSS J124036.81+152517.1, the Sun would look like a star of magnitude 8.83, 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 61774 7.25 light-years
- HIP 61398 13.1 light-years
- HIP 62249 15.3 light-years
- HIP 62350 17.2 light-years
- HIP 60355 17.3 light-years
- HIP 62724 18.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.