File:Comet Bennett daylight spiral.jpg
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DescriptionComet Bennett daylight spiral.jpg |
English: Comet Bennett on 1970 March 26, 12:41 UT. Advancing daylight prevented recording full extent of spiral structure. Composite of 17 images, exposure range 1/4 to 5 sec. Single image of nucleus 1/125 sec at 12:50 UT. Bar = 5 x 104 km. |
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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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 | 453 × 691 (40 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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26 March 1970
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1aafe44c10e8a8d49dd7ffa38629ad3e0e326dff
40,766 byte
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453 pixel
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