A planisphere is a star chart analogue computing instrument in the form of two adjustable disks that rotate on a common pivot. It can be adjusted to display the visible stars for any time and date. It is an instrument to assist in learning how to recognize stars and constellations. Read more
Celestial Products #MPP50 Millers Planisphere 50 No. SmCelestial Products #MPP50 Millers Planisphere 50 No. Sm Features:; Rotate the two discs to match the current date and viewthe entire night sky ; Great for learning and locating constellations, planetsand more ; Waterproof construction ; Consult the chart to determine which latitude works bestfor your area ; Available in two sizes: SM=5 (13 cm) LG=10 (25 cm) ; SM/50 ° N