Star · M4V
SDSS J163655.90+002526.4
SDSS J163655.90+002526.4 is a main-sequence star of spectral type M4V in the constellation Ophiuchus, 561.0 light-years from the Sun.
| Constellation | Ophiuchus |
|---|---|
| Distance | 561.0 light-years (172.0 pc) |
| Apparent magnitude | magnitude 24.18 |
| Absolute magnitude | magnitude 18.00 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 9.89 × 10⁻⁵ L☉ |
| Radius | 0.0374 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 36m 55.9s |
| Declination (J2000) | +0° 25′ 26″ |
| Space velocity (relative to the Sun) | 21.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.18. Visible from the whole Southern Hemisphere and north to latitude 90° 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 1465. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 10.0 million years.
The Sun seen from there
From a planet around SDSS J163655.90+002526.4, the Sun would look like a star of magnitude 11.01, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.