File:Comet Arend-Roland May 4.967, 1957.jpg
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Summary
| Description |
English: Comet Arend–Roland (C/1956 R1) on a 24-inch Zeiss reflector, 16-minute exposure on Kodak 103a-O plate, covering 3500–5000 Å, on 4.967 May 1957. |
| Date | 4 May 1957 |
| Source | Atlas of Cometary Forms (1969), p.118, fig.17 |
| Author | Paolo Maffei |
Licensing
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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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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:26, 8 April 2020 |  | 257 × 257 (28 KB) | C messier | Uploaded a work by Donn, Bertram; Rahe, Juergen; Brandt, John C. from [https://ntrs.nasa.gov/search.jsp?R=19700002956&qs=N%3D0%26DocumentID%3D19700002956 Atlas of drawings and photographs of comets] page 118 with UploadWizard |
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