Star · K9V
SDSS J152324.45-021133.8
SDSS J152324.45-021133.8 is a main-sequence star of spectral type K9V in the constellation Serpens, 208.7 light-years from the Sun.
| Constellation | Serpens |
|---|---|
| Distance | 208.7 light-years (64.0 pc) |
| Apparent magnitude | magnitude 21.29 |
| Absolute magnitude | magnitude 17.26 |
| Spectral type | K9V |
| Surface temperature | 3,770 K |
| Luminosity | 4.04 × 10⁻⁵ L☉ |
| Radius | 0.0149 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 23m 24.4s |
| Declination (J2000) | −2° 11′ 35″ |
| Space velocity (relative to the Sun) | 86.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.29. Visible from the whole Southern Hemisphere and north to latitude 88° 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 1817. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.7 million years.
The Sun seen from there
From a planet around SDSS J152324.45-021133.8, the Sun would look like a star of magnitude 8.86, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 74989 12.0 light-years
- HIP 74703 12.7 light-years
- HIP 75923 13.3 light-years
- ULAS J153256.84-012511.0 18.9 light-years
- HIP 75158 19.6 light-years
- HIP 76400 20.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.