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Questions tagged [photutils]

Photutils is an affiliated package of Astropy, to provide tools for detecting and performing photometry of astronomical sources. This tag is for questions that make use of this particular package. For general questions about the Astropy package, use the 'astropy' tag.

Photutils is an affiliated package of Astropy to provide tools for detecting and performing photometry of astronomical sources.

20 questions
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Photutils/IRAF Starfinder: Give Total Counts

I've been using IRAF Starfinder from the photutils package to identify sources from a fits image, or rather from the 2D array extracted from a fits image. The identificaiton of the sources seems to be working pretty well, and I get an astropy table…
Cal
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Sort out same star from Photutils DAOStarFinder Tables of multiple figures

I have a series of .fit figures of the CCD telescope observation, I use DAOStarFinder in photutils to do the photometrys. I want to find out data of same stars and plot their light curves. The stars table obtained from one figure looks like: id…
John Chen
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photutils residual_image has stars when saving it to fits file

after doing PSF photometry with fixed stars using photutils I display the residual image and some stars are not fully removed. I tried saving the residual_image to a fits file to inspect it better but the resultant fits file has little boxes with…
Pris
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Photutils DAOPhot Not Fitting stars well?

I recently ran across the PhotUtils package and am trying to use it to perform PSF Photometry on some images I have. However, when I try to run the code, I get very strange results. When I plot the image generated by get_residual_image(), the stars…
Owen D
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Centroid of star image

I'm trying to calculate the centroid of a star image: I'm fitting a 2D gaussian with least squares in order to get the centroid of the star with sub-pixel accuracy. And, in fact, I get a float number for the coordinates X and Y of the centroid…
Cristina PM
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