Venus synodic period
The sky weeps for you, the earth quakes at you, the Mourning-Woman calls to you, the Great Mooring Post cries out to you; your feet stamp, your arms wave, and you ascend to the sky as a star, as the Morning Star. - Pyramid Texts, Utterance 553
Also, here is an egg pattern Venus creates over one-fifth or single synodic period of the 8-year cycle. Thus the Venus pentacle is five such Ishtar/ Easter eggs angled approximately 72-degrees apart around a circle.
Here's a similar pattern of the barycenter of the solar system relative to the sun. It's a polar reflective interference pattern compositing the harmonic ratios of all the planets.