To get the stellar intensity in terms of net integrated counts with
in a circular aperture, set your aperture radius to fit around the
star (using the set button above the image ) and move
the mouse to the center of the star's point spread function. Then
read the net integrated counts from the bottom-right box above the
image (labeled "Int Cnts").
If you want to record that value in a data table, along with a
variety of other measurements, press <Shift> and left-click
near a star. You can record the integrated counts from several stars
and then compare the "Source-Sky" values in the measurements table.
On 6/12/2014 1:31 PM, Shubham KUmar
[via AstroImageJ] wrote:
How to calculate intensity of a Star in an
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