Star · K9V
2MASS J22134491-2136079
2MASS J22134491-2136079 is a main-sequence star of spectral type K9V in the constellation Aquarius, 156.4 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 156.4 light-years (48.0 pc) |
| Apparent magnitude | magnitude 21.64 |
| Absolute magnitude | magnitude 18.24 |
| Spectral type | K9V |
| Surface temperature | 3,770 K |
| Luminosity | 1.66 × 10⁻⁵ L☉ |
| Radius | 0.00956 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 22h 13m 45.0s |
| Declination (J2000) | −21° 36′ 09″ |
| Space velocity (relative to the Sun) | 21.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.64. Visible from the whole Southern Hemisphere and north to latitude 68° N. South of latitude 68° S it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1870. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.8 million years.
The Sun seen from there
From a planet around 2MASS J22134491-2136079, the Sun would look like a star of magnitude 8.23, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 108923 11.2 light-years
- HIP 109918 11.6 light-years
- HIP 110401 13.2 light-years
- WISEA J223444.44-230916.1 13.9 light-years
- HIP 109037 14.9 light-years
- HIP 109509 15.1 light-years
- HIP 108419 15.7 light-years
- HIP 110695 16.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.