Messier 39 is a large open star cluster located in the constellation Cygnus, approximately 800 light-years away from Earth. This celestial object reaches its annual culmination at astronomical midnight mid of August.
Specifically around August 13th.
Categories
Melotte 236 – M39
![Messier 39. M39](https://astrocamp.eu/wp-content/uploads/2023/12/M39_V1.2.1_en-1200x800.jpg)