Messier 39
Messier 39 is an open star cluster located in the constellation Cygnus. It is approximately 1,000 light-years away from Earth and contains around 30 stars. The cluster is estimated to be about 250 million years old, making it relatively young in astronomical terms.
The stars in Messier 39 are loosely bound by gravity and are spread over a region about 30 light-years in diameter. This cluster is best observed with binoculars or small telescopes, appearing as a faint patch of light in the night sky. It is a popular target for amateur astronomers.