Contact: Nicky Guttridge
ESA/Hubble Information Centre
Caption: This Hubble image shows RS Puppis, a type of variable star known as a Cepheid variable. As variable stars go, Cepheids have comparatively long periods -- RS Puppis, for example, varies in brightness by almost a factor of five every 40 or so days.
Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)-Hubble/Europe Collaboration Acknowledgment: H. Bond (STScI and Penn State University)
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