![M39 / NGC 7092 - head](https://astrophotography.pekdar.net/wp-content/uploads/2019/12/m39_head-768x513.png)
M39 / NGC 7092 – An open cluster in the constellation of Swan
It islocated about 825 light years (about 253 parsecs) from Earth,approaching at a speed of 28 km / [s]. The diameter is approximately7 light years. The observed brightness is 4.6 M. According to variousestimates, the age of the cluster is 230 to 300 million years. M39contains about 50-100 stars. Under