Image: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)

[edit] Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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File history

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Date/TimeDimensionsUserComment
current15:15, 7 December 2004700×600 (78 KB)SiriusB (Projection of the Sun using a spotting scope)
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