Star Life

MYRaf – astronomical image reduction and photometry software and interface for IRAF

MYRaf is an open source, practical, astronomical image reduction and photometry software and interface for the Image Reduction and Analysis Facility (IRAF); a suite of tools to process and analyze astronomical images.

A variety of open source projects assist MyRaf besides IRAF. These include PyRAF, Qt, Python, and alipy.

MYRaf uses the Python programming language and the Qt framework.

Features include:

  • Calibration removes spurious patterns introduced in the camera by electronic readout noise, thermal electrons, and pixel-to-pixel sensitivity variations:
    • Enable zero (or “bias”) correction – zero frames establish the pattern of readout noise.
    • Enable dark correction – dark frames establish the pattern and rate at which thermal electrons accumulate in the CCD chip.
    • Enable flat correction – flat field images determine the pixel-to-pixel pattern caused by sensitivity variations of the pixels or shadowing (“vignetting”) by telescope optics or dust particles.
  • Photometry:
    • Align.
    • Flip image vertically.
    • Flip image horizontally.
    • Rotate image.
    • Variable star’s coordinates.
    • Check star’s coordinates.
    • Select Observatory.
    • Select Method.
  • Header Editor.
  • Auto star finder with alipy and pySEx-tractor.
  • Observatory editor.
  • Cosmic Ray Cleaner.

Support: Blog, GitHub code repository for MYRaf 2, GitHub code repository for MYRaf 3
Developer: Yücel KILIÇ, Muhammed SHEMUNI
License: GNU General Public License v3.0

MYRaf is written in Python. Learn Python with our recommended free books and free tutorials.

Return to Astronomical Data Analysis

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