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New Improved BRT Image Post-Processing
01.18.2009  20:30


Although the online Bradford Robotic Telescope is currently down and being repaired, when it comes back up it will be even better. As long as the image was taken after a certain date and with the "Galaxy" camera/telescope, you can beta test a new feature that processes the image from a job request by applying a flat-field to the image. This results in a more accurate image, notably without a line in the top-right corner of the frame.

Here is a comparison between an image processed using the previous system and the new processor in beta testing:

Messier 94, spiral galaxy in Canes with scratch

© Bradford Robotic Telescope 2008, used with permission
This is M94, the spiral galaxy in the Canes Venatici constellation, generated with the old image processor. Notice the scratch artifact right through the galaxy.

Messier 94, spiral galaxy in Canes flat-field processed

© Bradford Robotic Telescope 2008, used with permission
This is the same image, but processed with the new flat-field image applied to it. The scratch through the galaxy is significantly reduced, although not completely if you know where to look. But the result is a great improvement. (Job id J60851)

Just for fun, this is another image I have submitted and received from the BRT (processed with the new flat-field applied):

Messier 55, globular cluster in Sagittarius

© Bradford Robotic Telescope 2008, used with permission
This is the globular cluster M55 in Sagittarius, with the colors inverted. The entire field seemed bright, perhaps from moonlight because it was taken well before dawn, so I thought it looked better inverted. (Job id J57855)
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© 2008, Andrew Ging