Links legais para entender os movimentos da Terra

Anoitecer no mundo
http://www.ptpac.com/index.php?ID=240

Movimento de translação

http://www.classzone.com/books/earth_science/terc/content/visualizations/es0408/es0408page01.cfm?chapter_no=visualization

Terra à noite

http://www.classzone.com/books/earth_science/terc/content/visualizations/es0101/es0101page01_popup8.cfm