#ASTROMETRY NET COMPILE INSTALL#
Make install -j INSTALL_DIR=$HOME/.local/astrometryĪdd to ~/.bashrc: export PATH=$PATH:$HOME/.local/astrometry/bin We use Linux or Windows Subsystem for Linux as follows:Īpt install gcc make libcairo2-dev libnetpbm10-dev netpbm libpng-dev libjpeg-dev python3-numpy python3-pyfits python3-dev zlib1g-dev libbz2-dev swig libcfitsio-dev NotesĪrticle on good robustness of to shaky, streaked images. It's preferable to use lossless formats for scientific imaging such as JPEG2000 or newer file formats. JPG is commonly used by prosumer cameras. wcs.fits from the WEBSITEįirst rename wcs.fits to myimg.wcs: PlateScaleFITS myimg.wcs -c 61.2 -149.9 -t -nc -png nc with az/el ra/dec and PNG plots of the data.īoth files contain the same data, just for your convenience.Ħ1.2 -149.9 is your WGS84 coordinates, is UTC time of the picture.
#ASTROMETRY NET COMPILE PC#
installed on your PC PlateScaleFITS myimg.fits -c 61.2 -149.9 -t -nc -png FITS image inputįITS is a legacy file format commonly used in astronomy. If the original image is in a lossy format such as JPEG, consider saving in a lossless format such as PNG after cropping. Of numbers 1 is the brightest star, so "-d 10" or "-d 1-10" mean lookįor extraneous regions of the image, try making a copy of the original image that has the offending regions cropped out. d / -depth : number of field objects to look at, or range H / -scale-high : upper bound of image scale estimate The parameters I find most useful for citizen science images include: -L / -scale-low : lower bound of image scale estimate To mitigate these issues, judicious use of arguments passed to solve-field via -args is probably a good start. These can very easily break solve-field, which is designed for professional science-grade imagery from telescopes and narrow to medium field of view imagers (at least to 50 degree FOV). Type solve-field -h or man solve-field for a brief description of the nearly 100 options available.īe sure to enclose the options in quotes.įor example, to specify that the image field is at least 20 degrees in extent: PlateScale ~/data/myimg.jpg -a "-L 20" ExamplesĬitizen science images often contain extraneous items in the image field of view. The -a -args command line option allows passing through a variety of parameters to solve-field, which underlies this program. If you use on your PC, you may need to install the indexįiles and setup your config file to point at them: downloadIndex ~/dataĬommand line options Pass-through arguments Note: If you want to work with the intermediate steps (source extraction) or photometry, see my AstroPy-basedĪ cloud service.