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5mm multi-coated prism with aluminised backing for maximum reflectivity and illumination to the autoguider
5 lbs / 22
The result is a 51 mm objective lens
Apparent field of view
The Night Sky Planisphere & Dimmable Red Light Torch PACKAGE Southern Hemisphere Flattener 5mm multi-coated prism with aluminisedThe Night Sky Planisphere for the Southern Hemisphere by David Chandler Astronomy star map Free Shipping Australia wide Generally regarded as the BEST planisphere! This sturdy, plastic laminate covered planisphere is a quick and convenient way of seeing which constellations are above the horizon at any specified time and day of the year. Sky and Telescope magazine adopted The David Chandler 'Night Sky' planisphere in 1976 and has promoted it ever
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