Quote:I was confused. In the last astronomical image that I put the letter p does not mean part. I don't think it means principium either. It most likely means puncta, which was a measure of time equivalent to a quarter of an hour.
Indeed, it may be that the superscript symbol c has nothing to do with the symbol for the Moon. But it doesn't seem like an abbreviation either, since puncta was also abbreviated as pta and there is also a c above the hour column.
I don't know why you don't think it's an abbreviation. A very high proportion of abbreviations are written that way. Grado, modo, quo, and countless others are written with one regular character and a superscripted second character.
I'm pretty sure it refers to the time the solar eclipse begins. Beginning (hours), minutes, seconds. Look at how high the numbers go in each column. In the second two columns they go up into the 50s.
The numbers in the first column don't go high enough to be quarter hours.