Star · M4V
SDSS J164916.89+464340.0
SDSS J164916.89+464340.0 is a main-sequence star of spectral type M4V in the constellation Hercules, 176.1 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 176.1 light-years (54.0 pc) |
| Apparent magnitude | magnitude 23.77 |
| Absolute magnitude | magnitude 20.11 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.42 × 10⁻⁵ L☉ |
| Radius | 0.0142 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 49m 16.9s |
| Declination (J2000) | +46° 43′ 40″ |
| Space velocity (relative to the Sun) | 26.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 23.77. Visible from the whole Northern Hemisphere and south to latitude 43° S. North of latitude 43° 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 1850. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around SDSS J164916.89+464340.0, the Sun would look like a star of magnitude 8.49, in the direction where our sky has the constellation Pictor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 52 Her 3.20 light-years
- HIP 80818 12.1 light-years
- HIP 82644 16.6 light-years
- HIP 84169 17.2 light-years
- HIP 80232 18.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.