File:Sun projection with spotting-scope.jpg

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Sun_projection_with_spotting-scope.jpg(700 × 600 pixels, file size: 78 KB, MIME type: image/jpeg)
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English:

  • 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 be somewhat overemphasized by slightly in.homogeneous 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)

Deutsch:

  • Beschreibung: Okularprojektion mit Zoom-Spektiv Papier (45x, Entfernung ca.

30 cm) in Bonn, am 22. Juli 2004, ca. 18 Uhr MESZ, abfotografiert und nachbearbeitet (aufgerichtet, Kontrast). Die erkennbare "Körnung" stammt eher vom Papier als von der Granulation der Photosphäre. Die erkennbare Randverdunklung wird durch die nicht ganz homogene Ausleuchtung überlagert und evtl. geringfügig überbetont. Weiteres Beispiel für einfache Sonnenbeobachtung.

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attribution share alike

This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
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Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
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Date/TimeThumbnailDimensionsUserComment
current15:15, 7 December 2004Thumbnail for version as of 15:15, 7 December 2004700 × 600 (78 KB)SiriusBProjection of the Sun using a spotting scope

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