{ "item_title" : "Imaging Sunlight Using a Digital Spectroheliograph", "item_author" : [" Ken M. Harrison "], "item_description" : "Introduction.- The Digital Spectrohelioscope.- The Sun's Spectrum.- Examples of Solar Imaging at Various Wavelengths.- How to Build Your Spectroheliograph (SHG).- Examples of Amateur Instruments and Their Results.- Processing Software.- Doppler and Other Effects.- Analyzing the Results.- Pre-Digital Solutions.- Future Developments.- Appendices.- Index.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/3/31/924/872/3319248723_b.jpg", "price_data" : { "retail_price" : "44.99", "online_price" : "44.99", "our_price" : "44.99", "club_price" : "44.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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