| Month of the year | Labelled on astrolabe |
|---|---|
| 1. January : | IANVA |
| 2. February : | FEB~ |
| 3. March : | MARTI9 |
| 4. April : | APL~ |
| 5. May : | MANs9 |
| 6. June : | IVNI9 |
| 7. July : | IVLI9 |
| 8. August: | AVGVST9 |
| 9. September : | SEPT-EB~ |
| 10. October : | OCTOB~ |
| 11. November : | NOV-EB~ |
| 12. December : | DECB~ |
The calendar is of the Western type. The vernal equinox falls
on the 13th 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: