Below are my interpretations of the Astro Section folios (subject to change, of course):
f67r1 Total solar eclipse in Pisces seen in London 16 March 1485
f67r2 Astrological interpretation of f68r3
f67v1 Tycho’s supernova Nov 1572 (anomalous)
f67v2 Planetary conjunctions seen from London
Upper left (triangle) AM 30 Dec 1484
Upper right (square) PM 15 May 1486
Lower right (checkmark) PM 24 Jan 1494
Lower left (square in T-O Map) AM 29 Nov 1483
f68r1 Great Comet 18 July 1533 2:00 AM London
f68r2 Comet C/1490 Y1 21 January 1491
f68r3 24 hours before the moon occludes the Pleiades, 7 Dec 1486 (date uncertain; this configuration happens ~9 times a century)
f68v1 Total solar eclipse16 March 1485 emphasizing the Moon’s role
f68v2 Total solar eclipse16 March 1485 drawing of the solar corona
f68v3 Diagram of how the Universe rotates around the earth
f69r Interpretation of the Astrological Lunar Cycle related to f68r3
f69v Not yet identified
f70r1 Not yet identified
f70r2 Total solar eclipse16 March 1485 related to the moon and solar corona