Astrolabe Catalogue

 

The calendar is of the Western type. Every tenth day and the end of the month.The vernal equinox falls on the 11th day of March. [N.B: Date is decimal as date of vernal equinox on some astrolabes can be measured to within 0.25 of a day]
The calendar is labelled:
Month of the year Labelled on astrolabe
1. January : Januari9
2. February : Februari9
3. March : Marcius
4. April : Aprilis
5. May : Maius
6. June : Junius
7. July : Julius
8. August: August9
9. September : Septemb'
10. October : October
11. November : Novēber
12. December : Decemb'
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