The Cosmos with RS Puppis
RS Puppis (or RS Pup) is a Cepheid variable star in the constellation of Puppis. It is one of the brightest known Cepheids in the Milky Way galaxyand has one of the longest periods for this class of star, of 41.4[8] days. Because it is located in a large nebula, astronomers using the ESO‘s New…