Abu Nuwas is an impact crater on the planet Mercury, 116 kilometers in diameter. To the north are the craters Ts'ai Wen-chi and Rodin. To the southwest is the crater Moliere, and the crater Aśvaghosa can be found toward the south. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On Mercury they are named after deceased artists, musicians, painters, and authors who have made outstanding or fundamental contributions to their field and have been recognized as art historically significant figures for more than 50 years.
Image Source. Marker locations are approximate and may not always appear to align with image on map.