Star · K9V
WISE J064336.71-022315.4
WISE J064336.71-022315.4 is a main-sequence star of spectral type K9V in the constellation Monoceros, 45.8 light-years from the Sun.
| Constellation | Monoceros |
|---|---|
| Distance | 45.8 light-years (14.1 pc) |
| Apparent magnitude | magnitude 21.77 |
| Absolute magnitude | magnitude 21.03 |
| Spectral type | K9V |
| Surface temperature | 3,750 K |
| Luminosity | 1.30 × 10⁻⁶ L☉ |
| Radius | 0.00271 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 6h 43m 36.7s |
| Declination (J2000) | −2° 23′ 17″ |
| Space velocity (relative to the Sun) | 14.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.77. Visible from the whole Southern Hemisphere and north to latitude 88° N. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1980. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 813 thousand years.
The Sun seen from there
From a planet around WISE J064336.71-022315.4, the Sun would look like a star of magnitude 5.57, in the direction where our sky has the constellation Serpens. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3404A 6.13 light-years
- GJ 3405B 7.19 light-years
- WISEPA J062720.07-111428.8 7.95 light-years
- WISEPA J062309.94-045624.6 9.13 light-years
- Gl 263 9.80 light-years
- HIP 36985 10.6 light-years
- Gl 231.3 11.1 light-years
- GJ 1097 11.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.