Star · K9V
WISEA J085633.87-181546.6
WISEA J085633.87-181546.6 is a main-sequence star of spectral type K9V in the constellation Hydra, 190.1 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 190.1 light-years (58.3 pc) |
| Apparent magnitude | magnitude 21.49 |
| Absolute magnitude | magnitude 17.66 |
| Spectral type | K9V |
| Surface temperature | 3,830 K |
| Luminosity | 2.57 × 10⁻⁵ L☉ |
| Radius | 0.0115 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 8h 56m 33.9s |
| Declination (J2000) | −18° 15′ 48″ |
| Space velocity (relative to the Sun) | 79.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.49. Visible from the whole Southern Hemisphere and north to latitude 72° N. South of latitude 72° S it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1836. 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 WISEA J085633.87-181546.6, the Sun would look like a star of magnitude 8.66, in the direction where our sky has the constellation Delphinus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 43920 5.14 light-years
- HIP 43777 6.62 light-years
- HIP 43655 11.0 light-years
- HIP 44657 13.3 light-years
- HIP 43054 13.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.