![Stephen James O'Meara](https://www.astronomy.com/wp-content/uploads/sites/2/2021/09/stephen_james_o_meara_new.jpg)
While looking at the Moon, have you ever wondered what the finest feature visible to the unaided eye might be? This month is a good time to find out because we have two Full Moons in a calendar month: on the evenings of December 31/January 1 and January 29/30.