SN 2005ke

SN 2005ke is a type of stellar explosion called a supernova, specifically a subclass known as a "subluminous Type Ia," meaning it was dimmer than typical Type Ia supernovae. These explosions occur when a white dwarf star in a binary system gains material from its companion until it ignites nuclear fusion, destroying the star and releasing a burst of light. SN 2005ke's brightness was relatively faint, providing valuable insights into the diversity of supernovae, which are important for understanding cosmic distances and the expansion of the universe. Its study helps astronomers refine models of such stellar explosions.