This star finder will allow you to find the constellations at any date and time in the Northern Hemisphere by rotating its movable disc. This' Planisphere 'has been designed and created by us from our desire to share with you our love towards the nature that surrounds us. It comes with an explanation on the back on how to use it. The explanation is in English, German, French and Spanish. Please scroll down for more information. It has been silk-screen printed on blue paper with high quality gold and silver inks. Dimensions: 22.5 x 22.5 cm /8.8” x 8.8” Materials: High quality 240mg blue papers, FSC certified. Gold and Silver silkskreen ink.