Astrometric and photometric precision of measurements at digital processing of tv wide-angle images of astronomical objects
The analysis of methods of astrometric and photometric processing of star images at TV observations with wide-angle lenses is carried out. Classic methods which are used at CCD-images processing and use fits of star image shapes and also non-standard methods, which include both fits of non-symmetric...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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National Aviation University
2004-12-01
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| Series: | Вісник Астрономічної школи |
| Online Access: | http://astro.nau.edu.ua/issues/2004_V.5_Iss.1-2/259.html |
| Summary: | The analysis of methods of astrometric and photometric processing of star images at TV observations with wide-angle lenses is carried out. Classic methods which are used at CCD-images processing and use fits of star image shapes and also non-standard methods, which include both fits of non-symmetric contours of star-like objects by functions and non-fit methods are considered. Iteration methods of star image and background separation in local place of a frame are examined. The investigation was carried out for TV tube of izokon type, photographic lenses Jupiter–3 and Helios–40, videotape recorders of VHS and Super-VHS types. |
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| ISSN: | 1607-2855 2411-6602 |