Re: Differential Photometry with a DSLR

Posted by karenacollins on May 06, 2020; 8:45am
URL: http://astroimagej.170.s1.nabble.com/Differential-Photometry-with-a-DSLR-tp1341p1343.html

Hi Steve,

I don't have experience with color images for astronomy, so I can't answer all of your questions. But to plot the average of each set of 5 data points, I would leave the images as separate images (i.e. not stack them). Run photometry as usual, then use the "Multi-plot Y-date" "Bin Size" setting at 5. That will average the time and the photometry of each set of 5 images in the light curve plot, which should give the same result as stacking the images and then running photometry.

If you want to save you binned time and photometry back to the measurements table, use the "New Col" icon in the same row.

Karen