親子觀星會

http://software.langbroek.org/

AstroRecord 3.2 - AstroRecord by Marc de Lignie is astrometric software to measure wide-field astronomical imagery. It was developed for astrometry on widefield (D)SLR meteor imagery (typically with 50mm focal length lenses, i.e. field of views up to 40 degrees) within the Dutch Meteor Society in the 1990'ies. The software corrects for image distortions introduced by the lens system, by means of the "Turner" method.
The software loads black-and-white 8-bit .bmp imagery. With a modern DSLR and a (sufficient quality) 35mm to 50mm focal length lens, the astrometric accuracy obtained is typically 5" to 7". The astrometric limit of the software (inherent to the used somewhat dated star catalogue) is around 2".
The version hosted on the IMO website will no longer install under Windows versions beyond Xp. That is not a problem with AstroRecord (the 32 bits version actually works fine under Windows 10) but with the installer. Hosted here is a .zip file with all necessary files, that circumvents the installer. Simply unzip the .zip file into a directory C:/ASTROREC and it should work.
The Help-file of the program provides guidance on to how to use AstroRecord. I also included a pdf file that details the use, step-by-step, geared to measuring imagery containing a satellite trail.