Акс:Sun projection with spotting-scope.jpg

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  • Description: Ocular projection of the sun with large sunspots using a spotting scope (50mm diameter, 45x magnification) and a sheet of paper approx. 30 cm from the ocular. The apparent granulation is due to that of the paper rather than the photospheric granulation. The middle-edge-variation is clearly visible, but may by somewhat overemphasized by slightly inhomogeneous illumination of the projection.
  • Site and date: Bonn, July 22, 2004, approx. 18 CEST (16 GMT)
  • Instruments and Software: 15-45x 50mm spotting scope, digital camera, The GIMP
  • Photographer: SiriusB
  • Other version(s): Image:Sun projection with spotting-scope large.jpg (full size, cropped)

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