Determination of field distortion of astronomical telescopes by means of the simultaneous adjustment method
There are three ways to determine the field distortion produced by astronomical telescopes: a) the direct comparison of measured coordinates with theoretical coordinates derived of an astrometrical catalog of high precision: b) the analysis of the residuals obtained from the linear reduction of a s...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universidad del Zulia
2011-01-01
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| Series: | Revista Técnica de la Facultad de Ingeniería |
| Subjects: | |
| Online Access: | https://www.produccioncientificaluz.org/index.php/tecnica/article/view/5588 |
| Summary: | There are three ways to determine the field distortion produced by astronomical telescopes: a) the direct comparison of measured coordinates with theoretical coordinates derived of an astrometrical catalog of high precision: b) the analysis of the residuals obtained from the linear reduction of a set of plates as a function of the coordinates in an area which correspond to the size of the plates and c) the a priori application of a series of tentative corrections based on a mathematical model of the distortion in the form of a polynomial, determining empirically the parameters which gives the best adjustment. This last process is considerably strengthened by the simultaneous adjustment of a set of plates with adequate overIap. This work proves the correct performing of the last method by a numerical simulation.
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| ISSN: | 0254-0770 2477-9377 |