Star · M4V
SDSSp J163600.79-003452.6
SDSSp J163600.79-003452.6 is a main-sequence star of spectral type M4V in the constellation Ophiuchus, 127.2 light-years from the Sun.
| Constellation | Ophiuchus |
|---|---|
| Distance | 127.2 light-years (39.0 pc) |
| Apparent magnitude | magnitude 20.09 |
| Absolute magnitude | magnitude 17.13 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.20 × 10⁻⁴ L☉ |
| Radius | 0.0558 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 36m 00.8s |
| Declination (J2000) | −0° 34′ 52″ |
| Space velocity (relative to the Sun) | 77.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 20.09. Visible from the whole Southern Hemisphere and north to latitude 89° N. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1899. 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 SDSSp J163600.79-003452.6, the Sun would look like a star of magnitude 7.79, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 81421 3.77 light-years
- HIP 81465 11.1 light-years
- WISE J162359.70-050811.4 12.3 light-years
- HIP 80315 12.4 light-years
- GJ 9572 16.2 light-years
- HIP 80837 16.5 light-years
- GJ 3962 17.2 light-years
- DENIS J1707252-013809 17.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.