Chapter Fifteen: Halley and his Comet; Chapter Seventeen: The King’s Astronomer; Chapter Twenty: Maria Mitchell
Inquiry Question: What are comets? What makes them unique among objects in the sky? How were astronomers like Edmund Halley able to tell the difference?
*”Halley’s Comet” was last visible from Earth in 1986. Ask your parents, or grandparents, if they were able to see Halley’s Comet.
*Show pictures of comets and explain their composition. Explain the features that astronomers look for. Explain how astronomers measure speed, trajectory and other behaviors when identifying comets.
* Why did some people have doubts about Halley’s ability to predict the comet’s return?
* Describe the discoveries of Caroline Herschel and Maria Mitchell during their telescopic sweeps of the sky.