Astronomy 2e

A spectrum constrains explanations of a source without requiring direct contact.

How to study this source

• How can light tell us about a distant star?

  coreAstronomy 2e, Chapter 5 on radiation and spectra; opening sections

  A spectrum constrains explanations of a source without requiring direct contact.

Ideas and questions

Read background definitions when a term blocks the argument. Then return to the source and reconstruct its claim in your own words.

Read alongside, read against