Preface Isaac Roberts' observatory, Crowborough Hill Isaac Roberts' telescopes List of the plates List of the abbreviations 1. The negatives 2. Arrangement of the photographs 3. Epoch of the Fiducial stars (A.D. 1900) 4. A table for converting measurements in right ascensions into intervals of time 5. Illustrations of the method for determining the right ascensions and declinations of the stars 6. Introduction Utility of the photographic charts 7. Refractors and reflectors as photo-instruments 8. Requirements and adjustments of a reflector for celestial photography 9. Collimation of the mirror 10. Essentials of a photo-telescope 11. Method for testing the stability of a photo-instrument 12. Photographic plates: their exposures and development 13. Description of the photographs and references concerning them 14. Deductions from the photographs.
Preface Isaac Roberts' observatory, Crowborough Hill Isaac Roberts' telescopes List of the plates List of the abbreviations 1. The negatives 2. Arrangement of the photographs 3. Epoch of the Fiducial stars (A.D. 1900) 4. A table for converting measurements in right ascensions into intervals of time 5. Illustrations of the method for determining the right ascensions and declinations of the stars 6. Introduction Utility of the photographic charts 7. Refractors and reflectors as photo-instruments 8. Requirements and adjustments of a reflector for celestial photography 9. Collimation of the mirror 10. Essentials of a photo-telescope 11. Method for testing the stability of a photo-instrument 12. Photographic plates: their exposures and development 13. Description of the photographs and references concerning them 14. Deductions from the photographs.
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