*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% of the distortion inherent in conventional 1-sided planispheres. Various Latitude Ranges available listed below in degrees. Product Numbers vary. Click on item to see product number. Information on how to place your order by fax or by telephone. Product Number: DC-LPNS12030 (Planisphere 8 inch, 20-30), DCLPNS13040 (Planisphere 8 inch, 30-40), DCLPNS14050 (Planisphere 8 inch, 40-50), DCLPNSS1 (Planisphere 8 inch, Southern Hemisphere, 30-40)