Astronomical calendar. Permanent part. 7th edition.

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The permanent part of the Astronomical Calendar of the All-Union Astronomical and Geodetic Society is a guide and guide for lovers of astronomy when using the tables of the Variable Part of the Calendar. as well as in the processing of astronomical observations, which can be done by the amateurs themselves. In the seventh edition of the Permanent Part, the structure of the book of the sixth edition . is preserved.
LF/731361505/R
Data sheet
- Name of the Author
- Абалакин В.К. (ред.)
- Language
- Russian