With a universe of options to explore, it can be difficult to track what awe-inspiring treasures are currently visible in your sky. The Tirion double-sided, multi-latitude planisphere can help guide your explorations throughout the year. Created by noted celestial cartographer Wil Tirion, this planisphere works over a vast range of northern hemisphere latitudes and uses a double-sided design to minimize distortion. It is made of durable plastic and the celestial dials are secured with no-corrosion brass rivets. The brown dashed line on the planisphere indicates the ecliptic, which is the yearly path of the sun amongst the stars. The bright planets (Mercury, Venus, Mars, Jupiter and Saturn) are always near the line, so if you see a bright 'star' close to the ecliptic that is not shown on the map, you can be sure it is one of these planets. The faint blue band on the maps is the Milky Way. The planisphere also uses symbols to identify select stars and deep sky objects like galaxies, nebulae and clusters. To learn more about this new planisphere, which is included in the FirstLight gift bundle or sold separately for just $14.99, click here. |
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