This constellation pictured is known as Cephus. Cephus "the King" is not a very well-known constellation other than the fact that is contains a well-known star Alderamin. Alderamin is also called Alpha Cephei. This star is the brightest in the constellation Cephus. One very interesting thing about this star is that is rotates very rapidly on its axis. Alderamin is a white star, it is considered a Class A star, which is now evolving off of the main sequence into a supergiant. Researchers believe that this star is on its way to becoming a red giant because of its low hydrogen supply. According to scientists this star shines 18x brighter than the Sun. This star rotates so rapidly that it goes through one revolution in less than 12 hours. Cephus lies very close to the north pole, so the star Alderamin is considered a pole star. This constellation is home to the famous red supergiant known as Garnet Star, Cephus is the 27th constellation to be discovered by the second century astronomer Ptolemy. 

http://www.constellation-guide.com/constellation-list/cepheus-constellation/