Encore - Paper Moon

February 04, 2017


Today and every Saturday Earth Science Picture of the Day invites you to rediscover favorites from the past. Saturday posts feature an EPOD that was chosen by viewers like you in our monthly Viewers' Choice polls. Join us as we look back at these intriguing and captivating images.

Photographer: Martin Dietzel, Mario Sämisch 
Summary Author: Martin Dietzel

October 2011 Earth Science Picture of the Day Viewer's ChoiceThe photo above appears to show the gibbous Moon captured in the hands of an observer. Actually, our lone satellite is seen here projected through the lens of an 80 cm (31.5 in), f/8 telescope onto a piece of tissue paper, instead of using an eyepiece. This interesting projection allows many observers, rather than just a single viewer, to see the image coming out of the telescope. It also nicely demonstrates the real field of view of a telescope, which is larger than what an eyepiece can cover. Photo taken on August 18, 2011, from Casa del Romano, Italy.