دورية أكاديمية
The Great Aurora of January 1770 observed in Spain
| العنوان: | The Great Aurora of January 1770 observed in Spain |
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| المؤلفون: | V. M. S. Carrasco, E. Aragonès, J. Ordaz, J. M. Vaquero |
| المصدر: | History of Geo- and Space Sciences, Vol 9, Pp 133-139 (2018) |
| بيانات النشر: | Copernicus Publications, 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Science LCC:Geology LCC:Dynamic and structural geology LCC:Physics LCC:Geophysics. Cosmic physics |
| مصطلحات موضوعية: | Science, Geology, QE1-996.5, Dynamic and structural geology, QE500-639.5, Physics, QC1-999, Geophysics. Cosmic physics, QC801-809 |
| الوصف: | 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 particular at San Cristóbal de la Laguna, Cádiz, Córdoba, Badajoz, Valencia, Castellón, Madrid, Barcelona, and Gerri de la Sal. The most equatorward observational site was San Cristóbal de la Laguna (28.48° N, 16.32° W) in the Canary Islands. In general, the descriptions put its duration from sunset to midnight, but the observers from Córdoba and Madrid report the aurora as being visible during the last hours of the night, and it was even observed the following day at Castellón. All the observers described the aurora as red in colour, while white and ash colours were also reported at Córdoba and Gerri de la Sal. The brightness and shape of auroral display changed over time. Calculations of the geomagnetic latitudes of the observation locations gave San Cristóbal de la Laguna as the southernmost (26° N) and Gerri de la Sal the northernmost (35° N) and indicate this aurora was observed over a wide range of abnormally low latitudes for such a phenomenon. Solar activity around the event was high, with the astronomer Horrebow registering 10 sunspot groups on that date (18 January 1770). |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2190-5010 2190-5029 |
| Relation: | https://www.hist-geo-space-sci.net/9/133/2018/hgss-9-133-2018.pdf; https://doaj.org/toc/2190-5010; https://doaj.org/toc/2190-5029 |
| DOI: | 10.5194/hgss-9-133-2018 |
| URL الوصول: | https://doaj.org/article/8589eaab10dd403699c3e0cfe55fb7ca |
| رقم الأكسشن: | edsdoj.8589eaab10dd403699c3e0cfe55fb7ca |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 21905010 21905029 |
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| DOI: | 10.5194/hgss-9-133-2018 |