Question

3. Cecelia Payne-Gaposchkin was the physicist who was able to put everything together, showing that the spectra of stars depended on the _____________________________ and the ________________________ in their atmospheres. She showed that stars were mainly ________________________ with the next most abundant element being _________________________.

Answer 1

Answer:

Showing that the spectra of stars depended on the ___temperature_____ and the ____degree of ionization of elements _______ in their atmospheres.

She showed that stars were mainly  ______ hydrogen________ with the next most abundant element being ______  helium ________.

Explanation:

Cecilia Payne worked at the Harvard College Observatory (HCO) where she analyzed for months the spectra of hundreds of stars; she aimed to calculate the elements present in them; and from her observations and studies over the years she discovered the information quoted above.