Astrolabium planum in tabulis ascendens continens qualibet hora atque minuto aequationes domorum coeli significationes imaginum moram nati in utero matris cum quodam tractatus nativitatum necnon horas inaequales pro quolibet climate mundi, Venice, 1488; and 1502 (Luc’ Antonio de Giunta).
Perhaps it is the same as the following work ascribed to Peter in a MS at Munich which I have been unable to inspect:
CLM 22048, 15th century, 176 fols., De signis celestibus eorumque significatione et potestate, cum multis tabulis astronomicis.
Kroll and Skutsch, in their edition of Julius Firmicus Maternus, II (1913), xxviii, list what appears to be another edition of the same year, 1488, at Augsburg, and which they say was reprinted in 1494 and often thereafter.
Opus Astrolabii plani in tabulis: a Iohanne Angeli artium liberalium magistro a nouo elaboratum; explicit feliciter. Erhardi ratdolt Augustensis viri solertis: eximia industria: et mira imprimendi arte: qua nuper veneciis: nunc Auguste vindelicorum excellet nominatissimus. Vigesimoseptimo kalendas Novembris. M. CCCC. LXXXVIII. Laus deo.
This edition, Kroll and Skutsch state, contained portions of the Mathesis of Firmicus, and some notes which Peter of Abano had added to the astrological images (Kroll et Skutsch, II, xxxii). Whether these brief notes are Peter’s sole connection with the Astrolabium planum, they do not make clear.
On the motion of the eighth sphere, 1310.
I have seen it stated somewhere that it forms a part of the preceding work. I have read the treatise in the first of the following MSS:
Canon. Misc. 190, 1445 A. D., fols. 78r-83v, Tractatus motus octave spere.
Cod. Vatic. Palat. Lat. 1377, 14-15th century, fols. 1r-5r, “Incipit tractatus quem composuit magister Petrus Paduanus in motu octave spere et sequitur capitulum primum prohemiale in operis causa et ipsius intentione. Quoniam iuxta Ptholomeum rerum quippe causas ... / ... inde causa existit prefati. Explicit tractatus motus octave spere ordinatus a magistro Petro Paduanensi anno gratiae 1310.”