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A New Method of Calibration of Photographic Plates from Three Historic Data Sets |
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| Authors: | Andrey G Tlatov Alexei A Pevtsov Jagdev Singh |
| Institution: | (1) Kislovodsk Solar Station of Pulkovo Observatory, Kislovodsk, Russia;(2) National Solar Observatory, Sunspot, NM 88349, USA;(3) Indian Institute of Astrophysics, Koramangala, Bangalore, India |
| Abstract: | |
| Keywords: | Solar cycle observations Chromosphere active Chromosphere quiet |
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