Perfect for classroom projects, or for light packing when hiking! *The Night Sky is not just another planisphere. I think The Night Sky is the finest and easiest to use star finding aid in existence.*--Jack Horkheimer, T.V's Star Hustler. Conventional planispheres severely distort the sky near the southern horizon. The distortion results from trying to stretch the whole dome of the sky onto a single flat map. The Night Sky is NOT a conventional planisphere! No flat map can remove all distortion, but The Night Sky eliminates over 90 percent of the distortion inherent in conventional 1-sided planispheres. Mini Planisphere Latitude Range: 40-50 degrees North Latitude. Click here to order by fax, or phone! Product Numbers DCSPNS1 (30-40) and DCSPNS2 (40-50)