Astrolabe Catalogue

 

The calendar is of the Western type. 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]Note very interesting spelling of the months, in particular june
The calendar is labelled:
Month of the year Labelled on astrolabe
1. January : a yanuariu9
2. February : d februariu9
3. March : d marsiu9
4. April : g aprilis
5. May : b maius
6. June : e yullius
7. July : g yulius
8. August: c augustu9
9. September : f septenber
10. October : a october
11. November : d novenber
12. December : f decenber
MHS Home | Contact Us | ©2006 Museum of the History of Science