Our star chart is designed to get you out learning the night sky within a matter of moments. Just set it for your time and location, make a few tweaks if you like for personal taste, and print it out.

The globular cluster Messier 107, also known as NGC 6171, is located about 21 000 light-years away in the constellation of Ophiuchus. Messier 107 is about 13 arcminutes across, which corresponds ...