Centroid Error

Posted by David Emory on Jul 19, 2013; 9:15pm
URL: http://astroimagej.170.s1.nabble.com/Centroid-Error-tp69.html

I open a set of apertures and then try to do a stack align or multi-aperature photometry.

I get a "Centroid ERROR: no signal in aperture for moment widths!' message.

There is clearly a star in the aperture.

I have tried this numerous times.