Constellation Cepheus is a northern sky constellation named after a king in Greek mythology. It is often depicted as a house-shaped figure and is located near Ursa Major and Cassiopeia. Cepheus contains several notable stars, including Alpha Cephei, which is a bright star that serves as a navigational reference. The constellation is best visible in the fall and winter months. It also hosts the Cepheid variable stars, which are important for measuring cosmic distances. Cepheus is home to the IC 1396 nebula, a region of star formation, making it an interesting area for astronomers to study.