Subtracting background stars for asteroid photometry?

Posted by basilr on Jul 25, 2019; 4:55pm
URL: http://astroimagej.170.s1.nabble.com/Subtracting-background-stars-for-asteroid-photometry-tp1197.html

This may be beyond the scope of this project, but would it be possible/relatively easy to add an option to subtract specific background stars from a multi-aperture plot?

I use AIJ for a preliminary look at lightcurve analysis for asteroids. As the target moves through the field it passes over/close to background stars, causing peaks in the plot. It would be great if I could select individual stars along the targets path (probably during the multi aperture selection?), then “subtract” the star as the asteroid passes over/close. Or, maybe there already is a way to do this in AIJ?

Again, this may be beyond the scope of the project- exoplanet transit photometry – but I feel it would be a very helpful feature for the asteroid photometrists and maybe the exoplanet work?

Thanks for a fantastic program, I use it all the time!

Basil