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DesertRat
professor emeritus
Reged: 06/18/06
Posts: 657
Loc: Valley of the Sun
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Re: what's up with SHS yahoo group?
06/30/09 10:38 PM
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Gene,
You may be correct after all, sortof. Before Hale built the SHS he built the SHG or spectroheliograph which I believe in some configurations did scan the image by turning the drive off. Other models by him, and Deslandres in France, scanned with a moving slit.
Glenn
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Brandon 94mm f7, Televue TV102 f8.6; GM8
Baader Wedge & Filters, Coronado SM90/BF30
IM715; C11 & C14; G-11 Gemini
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