File:Comet Bennett 2-4.jpg
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[edit]DescriptionComet Bennett 2-4.jpg |
English: Comet Bennet on 1970 April 2, 11:59.6 UT, by Dr. E. Roemer using 229-cm Steward telescope. Single 10s exposure printed in four different densities. |
Date | |
Source | Photographic Observations of Comet Bennett, 1970II Comets: Scientific Data and Missions (1972) |
Author | S.M. Larson and R.B. Minton |
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[edit]Public domainPublic domainfalsefalse |
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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current | 15:13, 10 February 2023 | 1,323 × 836 (144 KB) | C messier (talk | contribs) | Uploaded a work by S.M. Larson and R.B. Minton from [https://ntrs.nasa.gov/api/citations/19730003106/downloads/19730003106.pdf Photographic Observations of Comet Bennett, 1970II] ''Comets: Scientific Data and Missions'' (1972) with UploadWizard |
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2 April 1970
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28e8dda831ac00b11728fa871675c263c8c2b72a
147,766 byte
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1,323 pixel
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