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- Dew resistant pages!
- All pages removable. Take only the pages you need for tonight's observing session!
- Plots 13,810 objects from 62 catalogs
- Larger dark and emission nebulae plotted to scale as outlines
- Stars down to magnitude 9.5, and 12.5 on some close-up charts
- Includes an electronic (Excel format) or spiral-bound booklet database of object descriptions
- Allow easy optical tube rotation to place the eyepiece in any position without touching a screw or bolt.
- Work with Newtonians, Schmidt-Newtonians, and any other telescope design where the eyepiece can end up in awkward positions, particularly on german equatorial mounts
- Made from durable, flexible black vinyl enclosing an adjustable metal ring
- Easy one time installation
- Available in sizes for 3" through 16" telescopes (3.5" to 20" tube diameter)
�Copyright JB's Astronomy Shop, 2008
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