J. William Dell Brightness Analysis
I have done a pixel test. Pixel test on Summary Sept 21 & Oct 4
General comments
In trying to do a brightness variance test on these two Summaries,
we need to consider the following things;
Same Camera
Same telescope
A number of variables exist that may skew results
Different Atmospheric conditions
Time of Shoot
Sept 21 taken at 09:08:23 UT
Oct 4 taken at 07:04:27 UT
Process used for both images
Load images in Cadet Calibration software with 3 - 120 sec darks to create summaries.
No enhancement.
Save as Fits file
Open in Avis Fits file viewer
Change to negative image
Identify & record pixel strength based on Avis Fit Files Viewer program
When looking at the two Summary images
Sept 21 Summary image
Pixel images 3
1 @ 240
1 @ 241
1 @ 229
Surrounding pixels average 199 to 203
Oct. 4 Summary image
Pixel images 3
1 @ 260
1 @ 174
1 @ 155
Surrounding pixels average 118 to 121
Pixel strength of object compared to surrounding background.
On Sept 21 image (average surrounding pixel strength assumed at 200)
1 @ +40
1 @ +41
1 @ +29
On Oct 4 image (average surrounding pixel strength assumed at 120)
1 @ +140
1 @ +54
1 @ +34
Conclusions;
Based on this process,
it does appear that the object has increased in brightness
between Sept 21 and Oct 4
Data is provided that you may draw your own conclusions.
J. William Dell