Star · K9V
SDSS J162834.35+242847.2
SDSS J162834.35+242847.2 is a main-sequence star of spectral type K9V in the constellation Hercules, 172.3 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 172.3 light-years (52.8 pc) |
| Apparent magnitude | magnitude 21.60 |
| Absolute magnitude | magnitude 17.99 |
| Spectral type | K9V |
| Surface temperature | 3,800 K |
| Luminosity | 2.01 × 10⁻⁵ L☉ |
| Radius | 0.0104 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 28m 34.4s |
| Declination (J2000) | +24° 28′ 46″ |
| Space velocity (relative to the Sun) | 82.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.60. Visible from the whole Northern Hemisphere and south to latitude 66° S. North of latitude 66° N it never sets. 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 1854. 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 J162834.35+242847.2, the Sun would look like a star of magnitude 8.44, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ULAS J162655.04+252446.8 4.07 light-years
- HIP 80117 6.81 light-years
- HIP 81061 9.45 light-years
- HIP 81177 10.4 light-years
- 2MASS J16370238+2520386 11.1 light-years
- HIP 81810 13.7 light-years
- SDSS J163748.65+275254.6 13.7 light-years
- HIP 81996 15.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.