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Observer's Guide To Variable Stars Size:EN STL Pejlskydd i flera storlekarProvides a one stop shop for the amateur variable star observer. Features chapters on binocular variable stars and photometric study of variable stars, topics that have not been addressed in most other amateur astronomy books. Uses non mathematical language that is easily accessible to anyone with a general interest in astronomy. Provides basic and advanced information for an activity many amateur astronomers pursue once they have developed some