On page 137 of October issue of S&T is a picture someone took of Mars. I am surprised that Mars would look so big against the Moon. What bothers me in particular is the limb of the Moon occulting part of Mars. It seems to be arced to much, and it also does not appear to be concentric with my eyeball projected shape of the Moon. It appears to be angled slightly against my eyeball projected shape of the Moon. Can anyone educate me on what I am seeing? Is the polar cap creating some kind of visual illusion causing my eyes to play tricks on themselves? Is it a problem with reproducing an image on printed page or the medium upon which the original image was made? Stan -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.