Cepheid Variable Star in Galaxy M100
Depicts: Cepheid Variable Star
Copyright: Dr. Wendy L. Freedman, Observatories of the Carnegie Institution of Washington, and NASA
This Hubble Space Telescope image of a region in the galaxy M100 shows a class of pulsating star called a Cepheid Variable. Though rare, these stars are reliable distance indicators to galaxies.
Last Update: 1 September 2019