Lunar Flip - Perpetual Moon-Phases Flip Calendar. Track the moon's gravitational dance with this interactive perpetual calendar. Featuring 30 pages that guide you through each lunar phase—from new moon to full moon and back—this flip calendar transforms daily observation into scientific discovery. Each page reveals fascinating celestial facts about lunar cycles, gravitational effects, and astronomical phenomena. The durable hardback cover protects your exploration of Earth's nearest neighbor, while the compact design (170 x 20 x 177mm) fits perfectly on any desk or shelf. Ideal for astronomy enthusiasts, educators, and curious minds seeking to deepen their understanding of lunar mechanics and the moon's influence on our planet.