come_to_think

In http://news.yahoo.com/comics/doonesbury;_ylt=AtB0Fmhb0ebBZcg5IXPDXIgA_b4F, the crescent moon appears in three frames.  It struck me that (near enough) the limb is a semicircle and the terminator is a semiellipse with smaller curvature.  That is the first time I can recall seeing such realism.  Almost always, cartoonists & illustrators overdo it -- make the limb too big and the terminator too small.  Perhaps it is even a convention.  If so, Doonesbury is once again refreshingly unconventional.