 Unprocessed image  |
 After applying a low-pass filter (mask)  |
 After mutipying the image x5  |
 After subtracting the mask two times  |
Source: M42 image taken with the
UCSB Remote Optical Telescope,
University of California, Santa Barbara
Camera: 576x384 pixels CCD
Integratioh time: 1
second. No
filter
Telescope:
Celestron C-14
Date: 22nd,
January, 1999