Animações PowerPoint para aulas de Astronomia

Pequenas animações PowerPoint de Adric Riedel para utilizar nas aulas de Astronomia.

The HR diagram:
http://starguyspeaks.wordpress.com/2012/10/05/in-which-i-explain-the-hertzprung-russel-diagram/

Proper Motion:
http://starguyspeaks.wordpress.com/2013/06/18/on-proper-motion/

Trigonometric Parallax:
http://starguyspeaks.wordpress.com/2012/09/17/concerning-parallax/

Apps de Astronomia para smartphones:
http://starguyspeaks.wordpress.com/2013/02/19/astronomy-apps-for-the-discerning-smartphone-user/