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Greenwich Photoheliographic Results 1900 Catalogues: combined data: GPR1900.txt, daily data: dGPR1900.txt, group data: gGPR1900.txt Historical solar drawings: 1900drawings (original) |
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Color codes for the days: Green - both GPR data and sunspot drawing exist; Blue - GPR data (data are estimated at midnight); Black - sunspot drawing; Yellow - No data; Light-blue - no spot observed; |
| ACKNOWLEDGMENTS |
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The digitization of the drawings of Haynald Observatory at Kalocsa and the development of this web-presentation have been supported within the project TÁMOP 4.2.2.C-11/1/KONV/2012-0015 ”Föld-rendszer adatok tudományos feldolgozása és az ismeretek társadalmasítása korszerű informatikai eszközök segítségével”.
The revision of GPR data has received funding from the European Community's Seventh Framework Programme (FP7/2012-2015) under grant agreement No. 284461 (EHEROES, Mar. 2012 - Feb. 2015). The digitization of the drawings of Konkoly Observatory at Ógyalla has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement No. 218816 (SOTERIA, Nov. 2008 - Oct. 2011). The Mt. Wilson 150-Foot Solar Tower is operated by UCLA, with funding from NASA, ONR and NSF, under agreement with the Mt. Wilson Institute. |
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