Observation by Paul Whitmarsh: Solar Spectrum

Home made slit spectrograph, made from a cardboard tube a pair of razor blades to form the slit, and a 1000 line/mm holographic grating from Rainbow Symphony. Taken with an iPhone .

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Callum Potter, Mike Harlow, David Basey, Andrew Smith, Jeremy Shears, Andy Wilson, James Weightman, Ron Arbour, Ron Johnson

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