Two Latin manuscripts in Oxford and Florence preserve diverging recensions of a previously unnoticed astronomical treatise beginning Infra signiferi poli regionem (Oxford recension) or Circulorum alius est sub quo (Florence recension). It can be shown that this anonymous text was originally intended to accompany the Tables of Marseilles in Raymond of Marseilles’s twelfth-century Liber cursuum planetarum (ca. 1141). While the core tables for planetary longitudes in this set were founded on Ptolemy’s kinematic models, as known from the Almagest, this new source frequently deviates from the Ptolemaic norm, for instance by explicitly rejecting an epicyclic explanation of planetary stations and retrogradations. In place of the latter, it argues in favour of a heliodynamic theory inspired by Roman sources such as Pliny, which underwent certain developments in the works of twelfth-century Latin writers such as William of Conches. Rather than being wholly exceptional, these features are indicative of a degree of disconnect between planetary theory and computational practice in twelfth-century Latin astronomy, which is also detectable in other sources from this period.

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新发现的关于马赛表（十二世纪）及其非托勒密行星理论的论文

牛津和佛罗伦萨的两份拉丁文手稿保留了一篇以前未被注意到的天文学论文的不同版本区域管辖权（牛津修订本）或循环往复（佛罗伦萨修订版）。可以看出，这段匿名文本最初是为了与十二世纪马赛的雷蒙德的《马赛表》一起使用的。天文书籍（约 1141）。虽然这套行星经度的核心表是建立在托勒密的运动学模型的基础上的，正如从天文学大成，这个新来源经常偏离托勒密规范，例如明确拒绝行星静止和逆行的周转解释。它主张取而代之的是受普林尼等罗马文献启发的日光动力学理论，该理论在十二世纪拉丁作家如孔奇斯的威廉的作品中经历了一定的发展。这些特征并非完全例外，而是表明十二世纪拉丁天文学中行星理论与计算实践之间存在一定程度的脱节，这一点在这一时期的其他来源中也可以检测到。