The Night Sky Planisphere by David S. Chandler
Every sky watcher needs an easy-to-use planisphere to quickly tell which stars and constellations are above their horizon on any day and time of the year. A planisphere is the most highly recommended accessory when embarking on your journey of discovery under the night sky.
The Small Chandler Planisphere is only 125mm across so you can take it with you anywhere when travelling. Highly recommended for visitors or travellers from the Northern Hemisphere who need help getting their bearings under the southern skies.
How it Works:
The Night Sky Planisphere is made up of 2 sections -- an inner rotating dial (white) marked with the days and months of the year, and a fixed outer section (blue) marked with the hours of the day.
The dial contains a sky map printed with dark stars on a light background for easy nighttime readability. To use the planisphere simply turn the dial to match the date with the time you are looking at the night sky. The planisphere will then show the stars, constellations, and prominent deep-sky objects that are currently above the horizon as well as the location of the Milky Way. It works for any hour, of any day, of any year!
The Night Sky Planisphere is unique because it uses a two-sided projection to reduce sky distortion -- conventional planispheres severely distort the sky near the southern horizon.
The Chandler Planisphere is made from a plastic laminate so it won't get damp and wrinkly when used outside in the night air.
Included is a Planet finder card that allows you to find the position of the major planets up to several years ahead.