Overview#

Introduction#

Photutils contains tools for:

  • performing aperture photometry

  • performing PSF-fitting photometry

  • detecting and extracting point-like sources (e.g., stars) in astronomical images

  • detecting and extracting extended sources using image segmentation in astronomical images

  • estimating the background and background RMS in astronomical images

  • centroiding sources

  • creating radial profiles and curves of growth

  • building an effective Point Spread Function (ePSF)

  • matching PSF kernels

  • estimating morphological parameters of detected sources

  • estimating the limiting depths of images

  • fitting elliptical isophotes to galaxies

  • creating simulated astronomical images

The code and issue tracker are available at the following links:

Like much astronomy software, Photutils is an evolving package. The developers try to maintain backwards compatibility, but at times the API may change if there is a benefit to doing so. If there are specific areas you think API stability is important, please let us know as part of the development process.