Recalibration of the Sunspot-Number: Status Report von Clette, F., Lefèvre, L., Chatzistergos, T., Hayakawa, H., Carrasco, V. M. S., Arlt, R., Cliver, E. W., Wit, T. Dudok de, Friedli, T. K., Karachik, N., Kopp, G., Lockwood, M., Mathieu, S., Muñoz-Jaramillo, A., Owens, M., Pesnell, D., Pevtsov, A., Svalgaard, L., Usoskin, I. G., Driel-Gesztelyi, L. van, Vaquero, J. M.

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A Revised Collection of Sunspot Group Numbers von Vaquero, J. M., Svalgaard, L., Carrasco, V. M. S., Clette, F., Lefèvre, L., Gallego, M. C., Arlt, R., Aparicio, A. J. P., Richard, J.-G., Howe, R.

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Number of sunspot groups from the Galileo–Scheiner controversy revisited von Carrasco, V M S, Gallego, M C, Vaquero, J M

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Strong evidence of low levels of solar activity during the Maunder Minimum von Carrasco, V M S, Hayakawa, H, Kuroyanagi, C, Gallego, M C, Vaquero, J M

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Level and length of cyclic solar activity during the Maunder minimum as deduced from the active-day statistics von Vaquero, J. M., Kovaltsov, G. A., Usoskin, I. G., Carrasco, V. M. S., Gallego, M. C.

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Revisiting Christoph Scheiner’s Sunspot Records: A New Perspective on Solar Activity of the Early Telescopic Era von Carrasco, V. M. S., Muñoz-Jaramillo, A., Gallego, M. C., Vaquero, J. M.

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Understanding Solar Activity after the Maunder Minimum: Sunspot Records by Rost and Alischer von Carrasco, V. M. S., Aparicio, A. J. P., Chatzistergos, T., Jamali Jaghdani, S., Hayakawa, H., Gallego, M. C., Vaquero, J. M.

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Relationship between the Sunspot Number and Active Day Fraction: An Application for the Maunder Minimum von Carrasco, V. M. S., Llera, J., Aparicio, A. J. P., Gallego, M. C., Vaquero, J. M.

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Two debatable cases for the reconstruction of the solar activity around the Maunder Minimum: Malapert and Derham von Carrasco, V M S, Vaquero, J M, Gallego, M C, Villalba Álvarez, J, Hayakawa, H

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A Limit for the Values of the Dst Geomagnetic Index von Acero, F. J., Vaquero, J. M., Gallego, M. C., García, J. A.

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Sunspot Observations During the Maunder Minimum from the Correspondence of John Flamsteed von Carrasco, V. M. S., Vaquero, J. M.

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Sunspot Characteristics at the Onset of the Maunder Minimum Based on the Observations of Hevelius von Carrasco, V. M. S., Vaquero, J. M., Gallego, M. C., Muñoz-Jaramillo, A., de Toma, G., Galaviz, P., Arlt, R., Senthamizh Pavai, V., Sánchez-Bajo, F., Villalba Álvarez, J., Gómez, J. M.

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Revisiting the Amplitude of Solar Cycle 9: The Case of Sunspot Observations by W.C. Bond von Carrasco, V. M. S., Gallego, M. C., Arlt, R., Vaquero, J. M.

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Preface to Topical Issue: Recalibration of the Sunspot Number von Clette, F., Cliver, E. W., Lefèvre, L., Svalgaard, L., Vaquero, J. M., Leibacher, J. W.

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The Umbra-Penumbra Area Ratio of Sunspots During the Maunder Minimum von Carrasco, V. M. S., García-Romero, J. M., Vaquero, J. M., Rodríguez, P. G., Foukal, P., Gallego, M. C., Lefèvre, L.

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The Sunspot Drawing Collection of the National Solar Observatory at Sacramento Peak (1947–2004) von Carrasco, V. M. S., Pevtsov, A. A., Nogales, J. M., Vaquero, J. M.

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Sunspot observations by Charles Malapert during the period 1618–1626: a key data set to understand solar activity before the Maunder minimum von Carrasco, V M S, Gallego, M C, Villalba Álvarez, J, Vaquero, J M

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Historical Heliophysical Series of the Ebro Observatory von Curto, J. J., Solé, J. G., Genescà, M., Blanca, M. J., Vaquero, J. M.

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Soonspot: Software to Determine Areas and Sunspot Positions von Galaviz, P., Carrasco, V. M. S., Sánchez-Bajo, F., Gallego, M. C., Vaquero, J. M.

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Sunspot Records by Antonio Colla Just After the Dalton Minimum von Carrasco, V. M. S., Bertolin, C., Domínguez-Castro, F., de Ferri, L., Gallego, M. C., Vaquero, J. M.

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