PETIN M.I.
PETIN - METON calendar
Enclosure 2. Some reference astronomical data.
The calendars (tear-off, desktop, wall, mechanical and electronic blocks etc.) are the devices displaying the sequences of natural cycles of time (terrestrial day, lunar month, solar year), millennia ago accepted by mankind for units of measurements of big time intervals.
Natural cycles ............................................ http://Petin38Mikhail.narod.ru/index.htm
12. Compensation of the drifts ........................... http://Petin14Mikhail.narod.ru/index.htm
12. Industrial cycles ........................................... http://Petin15Mikhail.narod.ru/index.htm
- Variant 2
Comparison of basic parameters .................. http://Petin16Mikhail.narod.ru/index.htm
of various projects of the World Calendars
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Contents - http://Petin1Mikhail.narod.ru/index.htm