Beta Cephei is a bright star located in the constellation Cepheus. It is classified as a blue giant and is approximately 700 light-years away from Earth. This star is known for its variability, as it changes brightness over time due to pulsations in its outer layers. The star has a surface temperature of around 15,000 Kelvin, making it much hotter than our Sun. Beta Cephei is also part of a group of stars known as Cepheid variables, which are important for measuring cosmic distances. Its brightness and characteristics make it a subject of interest in the study of stellar evolution.