Star · M4V
SDSS J164911.16+300048.3
SDSS J164911.16+300048.3 is a main-sequence star of spectral type M4V in the constellation Hercules, 225.1 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 225.1 light-years (69.0 pc) |
| Apparent magnitude | magnitude 21.62 |
| Absolute magnitude | magnitude 17.43 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.68 × 10⁻⁴ L☉ |
| Radius | 0.0488 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 49m 11.2s |
| Declination (J2000) | +30° 00′ 49″ |
| Space velocity (relative to the Sun) | 8.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.62. Visible from the whole Northern Hemisphere and south to latitude 60° S. North of latitude 60° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1801. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.0 million years.
The Sun seen from there
From a planet around SDSS J164911.16+300048.3, the Sun would look like a star of magnitude 9.02, in the direction where our sky has the constellation Caelum. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 82469 9.00 light-years
- HIP 83109 12.6 light-years
- HIP 83656 17.5 light-years
- HIP 81370 18.0 light-years
- HIP 81459 18.1 light-years
- HIP 82510 18.6 light-years
- HIP 82506 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.