File:Comet Wirtanen near Aphelion - Eso9932b.jpg
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![File:Comet Wirtanen near Aphelion - Eso9932b.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Comet_Wirtanen_near_Aphelion_-_Eso9932b.jpg/601px-Comet_Wirtanen_near_Aphelion_-_Eso9932b.jpg?20230209155309)
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[edit]DescriptionComet Wirtanen near Aphelion - Eso9932b.jpg |
English: This is a reproduction of a photo based on the addition of twelve images of the nucleus of Comet Wirtanen near aphelion, obtained with VLT KUEYEN and the VLT Test Camera on May 17, 1999. The total integration time is 96 min. Individual pixels (each 0.0455 arcsec wide) are well visible at this large scale. The field of view is about 16 x 16 arcsec 2. North is up and east is left. These images were taken on May 17, 1999, between 06:50 and 09:50 UT with the VLT Test Camera at the KUEYEN telescope (VLT UT2) at the Paranal Observatory (Chile). The individual images were bias-subtracted, flat-fielded, cleaned of cosmics (dark pixels caused by cosmic rays impacting on the CCD detector) and normalized. The best twelve images were selected, aligned to the same pixel position and coadded. The observing conditions were variable; the seeing was initially about 0.4 arcsec, but deteriorated somewhat during the observations. |
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Source | https://www.eso.org/public/images/eso9932b/ |
Author | ESO |
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current | 15:53, 9 February 2023 | ![]() | 800 × 798 (298 KB) | C messier (talk | contribs) | Uploaded a work by ESO from https://www.eso.org/public/images/eso9932b/ with UploadWizard |
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Source | European Southern Observatory |
Credit/Provider | ESO |
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Date and time of data generation | 00:00, 29 June 1999 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
Keywords | Comet Wirtanen |
IIM version | 4 |
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29 June 1999
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a553cd0323d0d27ef80d2c8255ff90d4b363c83e
305,497 byte
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