The Sidc: World Data Center for the Sunspot Index

2004/10/01 by P. Vanlommel, P. Cugnon, R. A. M. Van Der Linden +3 · 1 citation
Physics and Astronomy · #Solar and Space Plasma Dynamics

paper · doi:10.1007/s11207-005-6504-2

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• Chinese Sunspot Drawings and Their Digitization – (I) Parameter Archives