Browsing through the Catalan Atlas, I haven't seen the second “star” posted by Koen, but I noticed another one in the You are not allowed to view links. Register or Login to view..
The first example is labeled “Tramontana” and I can't think of anything else but Polaris the pole star [edited after Rene's comment]. In the second example, the “star” appears opposite to the Moon: in general this would suggest that the star is (here?) the Sun, but I really can't understand this diagram, so I don't know.
When comparing images, it's useful to consider context as well, however intriguing the single details might be. I think it's important that in the Catalan diagrams the “stars” appear on the margin of a circle, while the lobed “flowers” in the VMS are at the center of circles (the fact that the detail in the bottom-left Rosette is not “exactly” at the center is also interesting of course).
I attach a few examples of more or less similar lobed items at the center of circular diagrams:
Harley 3814a – a scheme of the geocentric model (the central “object” is the Earth)
St.John's College 37 – a diagram about the computation of time (I can't tell the details)
You are not allowed to view links. Register or Login to view. – a diagram about the computation of Easter's date
You are not allowed to view links. Register or Login to view. – a diagram of the year (the 12 “petals” are labeled with the months)
The first example is labeled “Tramontana” and I can't think of anything else but Polaris the pole star [edited after Rene's comment]. In the second example, the “star” appears opposite to the Moon: in general this would suggest that the star is (here?) the Sun, but I really can't understand this diagram, so I don't know.
When comparing images, it's useful to consider context as well, however intriguing the single details might be. I think it's important that in the Catalan diagrams the “stars” appear on the margin of a circle, while the lobed “flowers” in the VMS are at the center of circles (the fact that the detail in the bottom-left Rosette is not “exactly” at the center is also interesting of course).
I attach a few examples of more or less similar lobed items at the center of circular diagrams:
Harley 3814a – a scheme of the geocentric model (the central “object” is the Earth)
St.John's College 37 – a diagram about the computation of time (I can't tell the details)
You are not allowed to view links. Register or Login to view. – a diagram about the computation of Easter's date
You are not allowed to view links. Register or Login to view. – a diagram of the year (the 12 “petals” are labeled with the months)
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