Serpens Caput is a constellation in the northern sky, representing the head of the serpent in Greek mythology. It is part of the larger constellation Serpens, which is unique because it is split into two parts: Serpens Caput (the head) and Serpens Cauda (the tail). This constellation is home to several notable stars, including Unukalhai, which is the brightest star in Serpens Caput. The constellation is best visible in the summer months and is located near Ophiuchus, the serpent-bearer, further emphasizing its mythological significance.