OpenAstronomyLog is a free and open XML schema definition for all kinds of astronomical observations. The schema is released under the APACHE Software License 2.0 and is currently supported in both open source and commercial software.
The Schema was developed by the German "Fachgruppe für Computerastronomie" (section for computerastronomy) which is a subsection of Germany's largest astronomy union (VDS - Vereinigung der Sternfreunde e.V.)
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