Abstract
Sunspot catalogs are very useful for studying the solar activity of the recent past. In this context, a catalog covering more than three solar cycles made by the astronomers of the Madrid Astronomical Observatory in Spain (nowadays, the National Astronomical Observatory) from 1952 until 1986 has been recovered. Moreover, a machine-readable version of this catalog has been made available. We have recovered abundant metadata and studied the reliability of this dataset by comparing it with other sunspot catalogs.
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Acknowledgements
A.J.P. Aparicio thanks the Ministerio de Educación, Cultura y Deporte for the award of a FPU grant. L. Lefèvre’s work is supported by the STCE and the BRAIN BR/165/A3/VAL-U-SUN grant. The authors have benefited from the participation in ISSI workshops. This work was partly funded by FEDER-Junta de Extremadura (Research Group Grant GR15137 and project IB16127) and from the Ministerio de Economía y Competitividad of the Spanish Government (AYA2014-57556-P and CGL2017-87917-P).
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Appendix
Appendix
Publications containing original data of the program of solar observations at the Madrid Astronomical Observatory are referenced in the following (the abbreviation BAOM stands for Boletín Astronómico del Observatorio de Madrid):
Gullón, E.: 1953, BAOM IV(6), 69 – 88.
Gullón, E.: 1954, BAOM IV(7), 83 – 99.
Gullón, E.: 1955, BAOM IV(8), 79 – 95.
Gullón, E., López Arroyo, M.: 1956, BAOM V(1), 77 – 109.
Gullón, E., López Arroyo, M.: 1957, BAOM V(2), 95 – 207.
Gullón, E., López Arroyo, M.: 1958, BAOM V(3), 25 – 66.
Gullón, E., López Arroyo, M.: 1959, BAOM V(4), 25 – 90.
Gullón, E., López Arroyo, M.: 1960, BAOM V(5), 17 – 56.
Gullón, E., López Arroyo, M.: 1961, BAOM V(6), 15 – 38.
Gullón, E., López Arroyo, M.: 1962, BAOM VI(1), 17 – 37.
Gullón, E., López Arroyo, M.: 1963, BAOM VI(2), 17 – 34.
Gullón, E., López Arroyo, M.: 1964, BAOM VI(3), 17 – 31.
Gullón, E., López Arroyo, M.: 1965, BAOM VI(4), 19 – 30.
Gullón, E., López Arroyo, M.: 1966, BAOM VI(5), 19 – 32.
Gullón, E.: 1967, BAOM VI(6), 25 – 53.
Gullón, E.: 1968, BAOM VII(2), 21 – 64.
Gullón, E.: 1969, BAOM VII(4), 21 – 68.
Pensado, J.: 1971, BAOM VII(6), 23 – 61.
Pensado, J.: 1972, BAOM VIII(1), 19 – 61.
Pensado, J.: 1973, BAOM VIII(4), 21 – 53.
Pensado, J.: 1974, BAOM VIII(6), 19 – 45.
López Arroyo, M.: 1975, BAOM IX(1), 21 – 41.
López Arroyo, M.: 1976, BAOM IX(3), 23 – 42.
López Arroyo, M.: 1976, BAOM IX(4), 23 – 35.
López Arroyo, M.: 1977, BAOM X(1), 43 – 53.
López Arroyo, M.: 1978, BAOM X(2), 21 – 35.
López Arroyo, M.: 1979, BAOM X(3), 47 – 88.
López Arroyo, M.: 1981, BAOM X(4), 25 – 77.
López Arroyo, M.: 1982, BAOM X(5), 19 – 69.
López Arroyo, M.: 1983, BAOM XI(1), 104 – 144.
López Arroyo, M.: 1983, BAOM XI(2), 41 – 71.
López Arroyo, M.: 1985, BAOM XI(4), 40 – 60.
López Arroyo, M., Gil, A.: 1986, BAOM XI(5), 102 – 115.
Gil, A., López Arroyo, M.: 1987, BAOM XI(6), 107 – 114.
Gil, A.: 1988, BAOM XII(1), 47 – 48, 61 – 65.
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Aparicio, A.J.P., Lefèvre, L., Gallego, M.C. et al. A Sunspot Catalog for the Period 1952 – 1986 from Observations Made at the Madrid Astronomical Observatory. Sol Phys 293, 164 (2018). https://doi.org/10.1007/s11207-018-1387-1
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DOI: https://doi.org/10.1007/s11207-018-1387-1