Personal Bok Walk and IRAF Art by Jesse Rogerson|Published 18 May 2014|5 comments Weird output in IRAF. We use a program called IRAF to monitor the observing as we go. We use it mostly to check the shape of stars while we focus. If you look at this image, you’ll see what shape a star should look like in the above plot (i.e., round). But every once in a while, IRAF spits out some weird things, like the above image. It’s fun to hold on to. A shot of me on the Bok Walk, an balcony with a great view!.