Tirion Double-Sided Multi-Latitude Planisphere

The Tirion Double-Sided Multi-Latitude Planisphere is a star-finding tool created by celestial cartographer Wil Tirion, built to show what's visible in the night sky across a wide range of northern hemisphere latitudes. Its double-sided design keeps the distortion inherent to polar-projection star maps to a minimum.

• Double-Sided, Low-Distortion Design: One side shows the southern horizon view, the other the northern, reducing edge distortion versus a single-sided planisphere.
• Multi-Latitude Horizon Lines: Multiple horizon lines labeled by latitude let you match the planisphere to your specific location.
• Durable Plastic with Brass Rivets: No-corrosion brass rivets secure the celestial dials for long-term outdoor use.
• Created by Wil Tirion: Made by the cartographer behind the landmark Sky Atlas 2000.0, published in 1981.
• Marks the Ecliptic and Milky Way: Shows the sun's yearly path among the stars plus symbols for notable stars and deep sky objects.