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By jagrier on January 15, 2018 in

In the last post in this series, we talked about “incidence angle” and hearkened back to a couple of CosmoQuest posts on the topic including the Moon Mappers tutorial section on lighting effects , and a post about “Illumination and Optical Illusions.”  In this post, we are going to take a specific look at why […]

By jagrier on January 5, 2018 in

As you know from having searched for impact craters on images here at CosmoQuest, some craters are are easier to spot and measure than others. One of the things that makes a crater easier to identify is a prominent shadow cast from the rim. Such shadows are created when the source of illumination (the sun) […]