Star · M3V
SDSS J170302.52+355824.3
SDSS J170302.52+355824.3 is a main-sequence star of spectral type M3V in the constellation Hercules, 193.6 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 193.6 light-years (59.3 pc) |
| Apparent magnitude | magnitude 22.00 |
| Absolute magnitude | magnitude 18.13 |
| Spectral type | M3V |
| Surface temperature | 3,180 K |
| Luminosity | 5.17 × 10⁻⁵ L☉ |
| Radius | 0.0236 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 17h 03m 02.6s |
| Declination (J2000) | +35° 58′ 25″ |
| Space velocity (relative to the Sun) | 70.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.00. Visible from the whole Northern Hemisphere and south to latitude 54° S. North of latitude 54° 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 1832. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.4 million years.
The Sun seen from there
From a planet around SDSS J170302.52+355824.3, the Sun would look like a star of magnitude 8.70, 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):
- SDSS J165031.33+352359.5 10.3 light-years
- HIP 82068 11.9 light-years
- HIP 83494 14.6 light-years
- HIP 83838 14.8 light-years
- HIP 85186 15.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.