File:Lacrosse5 brightprofile.jpg

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English: Lacrosse 5 (05-016A) brightness profile derived from two pass photographs, showing the sudden "dip" in brightness known as the "disappearance trick". These images and the derived graph were made by amateur observer Marco Langbroek from a temporary location at Almere, the Netherlands, in the evening of 26 September 2009. Camera: Canon EOS 450D @ 800 ISO + EF 50/2.5 Macro lens @ F2.8, 10.05s exposures.
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Author Marco Langbroek

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I, the copyright holder of this work, hereby publish it under the following license:
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current12:42, 29 September 2009Thumbnail for version as of 12:42, 29 September 2009893 × 926 (329 KB)Marcoaliaslama (talk | contribs){{Information |Description={{en|1=Lacrosse 5 (05-016A) brightness profile derived from two pass photographs, showing the sudden "dip" in brightness known as the "disappearance trick". These images and the derived graph were made by amateur observer Marco

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