Seeing Stars
Stars are “just” points of light. Tricky little devils. They show up every slip we make.
It is easy to take stars for granted and yet they pose some of the most difficult objects to process. The problem is that we instinctively know what a star should look like... or do we? Theoretically, all stars should be a single illuminated pixel on account of their distance and yet we accept the concept that brighter stars appear larger than dimmer ones. The question remains, how much is enough? Pictorially, stars can visually get in the way of the purpose of an image: consider a dim nebula in the Milky Way, the eye is distracted by the numerous bright punctuations and as a result it is harder to distinguish the gaseous clouds within. ...
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