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Observing the sun Size:EN STL Arbetsspänning: 2A comprehensive solar observing guide for use at the telescope by amateur astronomers at all three levels: beginning, intermediate, and advanced. Users will find invaluable information for identifying features through photos, charts, diagrams in a logical, orderly fashion and then interpreting the observations. Observing the sun A Pocket FieldGuide, Author: Jamey L. Jenkins Because the Sun is a dynamic celestial body in constant flux, astronomers
