You can now purchase The Night Sky™ planisphere with the Night Reader Pro™ together for one low price!
The map projection used for any planisphere is a flat representation of our spherical view of the cosmos. Some distortion of distance, scale, area, etc. always results from this process. In map projections commonly used in planispheres this distortion increases geometrically as distance from the center increases. In conventional planispheres the distortion can be extreme which makes […]