Starting from the center, working clockwise (if manuscript pages are turned right to left):The eight points of the compass: N, NE, E, SE, S, SW, W, NW and their corresponding names.
Second ring: the twelve signs of the Chinese zodiac, yin signs are represented by the red half moon, yang signs are represented by the yellow half moon
Between Second and Third ring: the names of seven planets, I believe the top-most should be Mars (the writing looks like the word “atlas” to me). The planet name should correspond to the compass direction it is most prominently visible from)
Third ring: the astrological houses of the Western zodiac (Aquarius, Pisces, etc)
Fourth/outermost ring: not sure of this yet, could be names for Greek/Roman/Persian gods or goddesses that should correspond the astrological houses they are directly above. I will consider this further.