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Oakland Astronomy Club Image
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MHSO Tower #1 6" Refractor
Here's the 6" f/12 refractor that resides in Tower #1. This scope had one of the early Hydrogen-Alpha filters as part of its instrument array to deliver enhanced views of solar activity, such as flares and prominences. Unfortunately, that filter has been lost over the years. The mount restricts the declination travel of the scope to near the ecliptic due to its original role as a solar observing tool.
Image © 2000 Oakland Astronomy Club