You might find this interesting.
I think it's highly probable that we are looking at a star chart from another 'nearby' world. Only now, with the use of computers is it possible to build star charts of the night sky visable from nearby worlds. Please note that some constellations on the manuscript are familiar to astrononmers and other formations appear to be unique. This supports the notion that we are dealing with 'nearby planet's; Mars, planets about Alpha Canturi?
Seasoned astronomers probably already know which stars and 'constellations' are made up of 'nearby' stars and which represent distorted, or absent constellations.
I'm confident this theory could be accepted or dismissed after a few minutes of thoughtful consideration. Computer simulations might also help us reach the conclusion that this is a one of a kind manuscript, or a complete fraud and fabrication. Similar to 'the Devil's Bible', another medival book that contains mysterious incantations, maps and sky charts. Maybe the V. Manuscript is just another in a series of bogus quasi-biblical books drafted by over imaginative monks during the Middle Ages? It's really fascinating to speculate whether the V. manuscript features the observations made by a human astronomer who might have been abducted by ancient aliens and transported to another world?