No text, but a visual code

[-JKP-]

Except for the occasional enlightened astronomer (and there weren't many), people in the medieval period didn't make much of a distinction between planets and stars. They called most of them stars, "moving" and "fixed" stars.

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  Emma did a bright analysis about (o),(a) and (y or 9) as the same class of character. They are complementary and occur in the same position in the word. I think all of them stand for the stars in different positions or moments.

This is not quite correct and I don't think you are interpreting Emma's work correctly.

The "o" and "9" behave in certain ways that are similar in certain positions, but you will NOT find the "o" at the ends of words in the same way as the "9" and you certainly will not find the "a" behaving like "o" or "9", it has its own unique patterns. Nor will you find the "o" following "8" at the ends of words in the same way as "9".