For a short time period (about a day), I thought I was famous. Then reality set in. I was taking images of the Owl nebula (M97) in narrowband, on the new 24" Planewave telescope located in California. Below is a 15 minute stack with hydrogen alpha filter. The dot which is marked is not present on any images on the web showing the nebula. A new supernova?! No. After emailing the imaging specialist for iTelescope (very helpful btw), it turns out this is "residual bulk image". Essentially a ghost of the star used to focus the scope just before this image was taken. A CCD imaging artifact. Ouch.