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Solar Physics

, 293:164 | Cite as

A Sunspot Catalog for the Period 1952 – 1986 from Observations Made at the Madrid Astronomical Observatory

  • A. J. P. Aparicio
  • L. Lefèvre
  • M. C. Gallego
  • J. M. VaqueroEmail author
  • F. Clette
  • N. Bravo-Paredes
  • P. Galaviz
  • M. L. Bautista
Article

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.

Keywords

Solar activity Sunspots Sunspot catalogs Sunspots, statistics 

Notes

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).

Conflict of Interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  • A. J. P. Aparicio
    • 1
    • 3
  • L. Lefèvre
    • 2
  • M. C. Gallego
    • 1
    • 3
  • J. M. Vaquero
    • 3
    • 4
    Email author
  • F. Clette
    • 2
  • N. Bravo-Paredes
    • 1
  • P. Galaviz
    • 4
  • M. L. Bautista
    • 1
  1. 1.Departamento de FísicaUniversidad de ExtremaduraBadajozSpain
  2. 2.Royal Observatory of BelgiumBrusselsBelgium
  3. 3.Instituto Universitario de Investigación del Agua, Cambio Climático y Sostenibilidad (IACYS)Universidad de ExtremaduraBadajozSpain
  4. 4.Departamento de FísicaUniversidad de ExtremaduraMéridaSpain

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