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Peter W. O'Brien

Location of Photo:

Derry NH

Date/Time of photo:

11/4/07 04:27 - 06:00 UT


DSI Pro II behind homebuilt 6" f1.8 astrograph


These two images were (thru trial and error) taken 90min appart. Each image consists of 1 and 8 sec shots combined in PS. To aquire detail of the central nucleus 100 frames were taken in quick succession (again 90 min appart) and wavelet processed in Registax


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