Astronomy 404
Lecture 4, Sept. 4 Fall 2019

Lecture Notes: pdf file

Distance: Parallax

Parallax Revolution: Gaia

Stellar Spectra

Photons in Thermal Equilibrium: Blackbody Radiation

A Census of Stars: the Hertzsprung-Russell Diagram

https://apod.nasa.gov/apod/image/1809/sunspectrum_noao_3071.jpg

Lecture Archive


Brian D. Fields