Eleven Moon Phases in Folio 86v?

[Dobri]

You can count those circles in several ways, but I'd agree that 9 is a possible outcome. The "Lunacentrism" would be bizarre though.

During the early 15th century, the Moon was considered the closest place to Earth where the Choir of Angels resided, followed by the Choirs of Archangels, Virtues, Powers, Principalities, Dominations, Thrones, Cherubim, and finally the Seraphim (the highest Choir, most distant from Earth but closest to God).

Since the Choir of Angels was associated with the Moon, artistic depictions featured Angels with moon-like halos and white robes.

The following article, You are not allowed to view links. Register or Login to view., describes this medieval belief system.