7in12

the 7 planets (in red), their relative seven Hebrew letters (in blue), and the relative Greek vowels (in green) in a heptagram inside a circle delimited into 12 segments, labeled with the 12 zodiac signs (in red), their 12 relative Hebrew letters (in blue) and their relative Greek consonants (in green). Refer to the Sefer Yetzirah re. attributions of one to the other: http://www.sacred-texts.com/jud/yetzirah.htm