This is an image of the star-forming region Sharpless 106 taken on May 12th 1996. The image shown is a stack of seven similar images taken at slightly dithered positions on the sky. Each of these seven is a straight co-add of fifteen 2 second images. Thus, the total integration time in the final image is 210 seconds. Five sky images, each 15x2 seconds, were taken at different points on the sky and combined to remove background stars, before being subtracted from the source images.
North is up and East left.
These data were taken near the zenith, during sunrise. The image has been scaled logarithmically to show the full dynamic range of the nebula and stellar cluster. We were able to eliminate the bad pixels seen in the other images shown on this page, since the seven source images were taken at slightly different positions on the sky. Spots due to persistence from bright sources have been similarly eliminated. Some slight coma in the stellar images is visible, due to a small misalignment of the Omega-Prime optics which we have since eliminated.