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ASTROMETRY WITH A SMALL SCHMIDT TELESCOPE: THE POSITION OF NGC 7027. | Semantic Scholar

@article{Cudworth1978ASTROMETRYWA,
  title={ASTROMETRY WITH A SMALL SCHMIDT TELESCOPE: THE POSITION OF NGC 7027.},
  author={Kyle McC. Cudworth and Michael G. Oravecz},
  journal={Publications of the Astronomical Society of the Pacific},
  year={1978},
  volume={90},
  pages={333 - 333},
  url={https://api.semanticscholar.org/CorpusID:122376141}
}

An 18-cm f/4 Schmidt camera has been found to be usable for photographic astrometry. This instrument has been used to derive an accurate optical position for the planetary nebula NGC 7027 to allow comparison between photographs and radio maps of the object.