Messier 39. NGC 7092

Click on the image for a full resolution version See this image also on Instagram   Messier 39 (NGC 7092) is a small open cluster mainly populated with stars showing a mass about our Sun’s. Being about 250 million years old, its 30-50 stars are still in the main sequence, burning hydrogen. In 2002, Gray … Continue reading Messier 39. NGC 7092