Articles | Volume 9, issue 2
Hist. Geo Space. Sci., 9, 133–139, 2018
https://doi.org/10.5194/hgss-9-133-2018
Hist. Geo Space. Sci., 9, 133–139, 2018
https://doi.org/10.5194/hgss-9-133-2018

  12 Oct 2018

12 Oct 2018

The Great Aurora of January 1770 observed in Spain

Víctor M. S. Carrasco et al.

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An analysis is made of the records made by Spanish observers of a notable aurora on 18 January 1770 in order to study the characteristics of this event. The records indicate that the phenomenon was observed in both continental and insular territories of Spain. In general, observers described the aurora as red in colour, from sunset to midnight. Calculations of the geomagnetic latitudes of the observation locations indicate this aurora was observed over a wide range of abnormally low latitudes.