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IRAF’s identify error – center not found

During the last few days I have struggled a bit with the wavelength calibration of some long-slit spectra. When using the identify task of IRAF I found that I could select (“m”ark) only some of the lines, without any clear indication why the rest were not recognized (some were indeed stronger but others were equal […]

“Too many unprocessed floats” in LaTeX

! LaTeX Error: Too many unprocessed floats. This error in LaTeX means that it is unable to handle more than a specific number of figures and tables (yes, there is a limit!  no more than roughly 30). Unless you want to replot and combine figures an easy solution is to add the package ‘morefloats’: \usepackage{morefloats} […]

THELI and Python – when you don’t think enough…

THELI is package for the automated reduction of astronomical imaging data. One of the prerequisite is Python 2.5 or higher (as THELI uses numerous shell and Python scripts). As I had already installed Scisoft 7.5 (with Python 2.5) I though that everything was ok. I started using THELI and indeed no problem up to the […]