The book's 28 mildly mathematical activities invite readers to carry out the essential work of the astronomer by utilizing real observational data sets and high-quality celestial photographs to establish the innate properties of a range of cosmic systems. Taken in sequence, these activities illustrate the epic advancement of stellar and planetary astronomy over the past century, up to the present day. The activities start with measuring the distance and characteristics of the Sun, then move on to investigating the properties of more distant stars, including their end stages: supernova explosions, white dwarfs, and black holes. Finally, the activities move to the planetary realm where observations and elementary physics theory uncover the properties of planets. Concluding exercises allow readers to discover exoplanets from published observations.
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