Title: Sefer ha-tekhunah
Subtitle: sefer yaḳar ṿe-nifla meʾod ʻal ḥokhmat ha-tekhunah ... umi-tokho yitbaʾer heṭev kamah leshonot Ḥazal ṿeha-Rambam be-hilkhot ḳidush ha-ḥodesh
Subjects: Early works to 1800, Astronomy, Jewish Calendar