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and downloadable astronomy software to help you confidently locate and explore the night sky
Built for explorers and nature lovers alike
or harbor activities from the home with a view
crisp images with reliable contrast in a variety of lighting conditions
and true-to-life color
Nebula Filter Oxygen III 1.25-inch Prism System_Roof and downloadable astronomy software toExplore Scientific Nebula Filter 1. 25" O III Range from 483nm to 511nm with peak at 496nm. Transmission 96. 7% Oxygen III This is the highest contrast Nebula Filter in the series, a line filter for only the two emission lines of oxygen. A great choice for observations of supernova remnants and other nebulae that glow in OIII. Other types of objects that glow in all parts of the visible spectrum (e. g. galaxies) are reduced visibly, but some normally
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