File:Comet Whipple 1942a.jpg

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Comet_Whipple_1942a.jpg(371 × 372 pixels, file size: 83 KB, MIME type: image/jpeg)

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English: Comet Whipple 1942a as photographed on 10 March 1942.
Date
Source Comet Notes: Comet 1942a (Whipple); Periodic comet Schwassmann-Wachmann 2; Periodic comet Grigg-Skjellerup Popular Astronomy, Vol. 50, p.223
Author George Van Biesbroeck

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This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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Date/TimeThumbnailDimensionsUserComment
current10:40, 5 February 2023Thumbnail for version as of 10:40, 5 February 2023371 × 372 (83 KB)C messier (talk | contribs)Uploaded a work by George Van Biesbroeck from [https://articles.adsabs.harvard.edu/pdf/1942PA.....50..223. Comet Notes: Comet 1942a (Whipple); Periodic comet Schwassmann-Wachmann 2; Periodic comet Grigg-Skjellerup] Popular Astronomy, Vol. 50, p.223 with UploadWizard

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