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EQAlign born as a software that assists to align a German Equatorial Mount (GEM) exactly to the Earth polar axis. The used method is that of Julius Scheiner (1858-1913) german mathematic, physic, astronomer and pioneer in astrophotography.

Today, in adition to polar align feature, EQAlign is a full featured software that:
Can be used to measure and analyse your mount Periodic Error (PE).
Can autoguide your mount, so you can minimize the Periodic Error and polar misalignment effects and it made possible to shoot long exposure astrophotography.

Implements a complete PC GoTo platform. EQAlign solves orbital elements of planets, comets and asteroids to compute actual position coordinates, magnitude, distance, etc. You can plan a journal, selecting any object of the database, make your own object comment annotations, etc.

Supports many cams as long exposure modified webcams, and others CCD and CMOS cams.

EQAlign is available for Windows systems, we are working in a Linux version called Kalyke.
EQAlign is free software published under GNU/GPL versión 2 license, if you want, we offer the source code available in our Subversion repository. We will be happy to receive your help, of course, you can join to developing group.