Simulations for History of Astrophysics
Epicycles Demo Ptolemaic System Ptolemaic Phases of Venus Ptolemaic Orbit of Mars Retrograde Motion Planetary Orbit Simulator (NAAP)
Poll: Feedback on T01
To help demo the classroom polling system we’ll be trying out, please take the following poll. (It’s below the fold — click on “Read more”.) You can take it via text message or by clicking a link. There are two questions, p01 and p02 — be sure to scroll all the way down.
Web-based planetaria
I haven’t had a chance to try these out, but the following are two programs that simulate a planetarium, and each runs via the Web so there is no software to install. At first glance they seem excellent. WikiSky: http://www.wikisky.org/ SkyView Cafe: http://www.skyviewcafe.com/