Cepheid Variable Stars and the Cosmic Distance Ladder

Cepheid Tour Still This is a tour developed by Professor Alyssa Goodman at Harvard University. This tour introduces cepheid variable stars and how the relationship between their pulsation periods and their luminosities has helped to estimate cosmic distances.


Alyssa Goodman

The full version of this tour can be downloaded here (by right-clicking) and viewed in the desktop version of WorldWide Telescope.

cepheid_radcliffe.wtt3.02 MB