Astrometric Plate Reduction with Orthogonal Functions and Milli-arcseconds Accuracy in Deep Proper Motion Surveys

  • Devendra Ojha
  • Published 2008


We have been doing a sample survey in UBV photometry and proper motions as part of an investigation of galactic structure and evolution. The programme is based on Schmidt plates (from OCA, Tautenburg, Palomar and ESO Schmidt telescopes) digitized with the MAMA machine (CAI, Paris). The high astrometric quality of the MAMA gives access to micronic accuracy… (More)


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