Christian Horrebow’s Sunspot Observations – I. Life and Published Writings
Christian Horrebow’s Sunspot Observations – I. Life and Published Writings
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DOI：
10.1007/s11207-019-1465-z
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发表时间：
2019-06
期刊：
影响因子：
2.8
通讯作者：
C. Jørgensen;C. Karoff;V. Senthamizh Pavai;R. Arlt
中科院分区：
文献类型：
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作者：
C. Jørgensen;C. Karoff;V. Senthamizh Pavai;R. Arlt
1761年至1776年间，克里斯蒂安·霍尔博对哥本哈根朗德特伦的太阳黑子进行了定期观测。基于这些观测，他在1775年写道：“似乎在经过了一定的年头之后，太阳的出现在黑子的数量和大小方面会重复出现。”因此，霍瑞博在海因里希·施瓦布发现太阳周期并估计其周期之前几十年就提出了太阳周期的假设。这证明了霍瑞博作为太阳黑子观测者的能力。在这篇文章中，我们对克里斯蒂安·霍尔博的工作进行了概述，包括一本简短的传记和一本完整的参考文献。我们还提供了他在《丹斯克历史年鉴》上关于太阳黑子的著作的丹麦语到英语的翻译。这些著作包括我们讨论其完整性的每日太阳黑子测量表。
Between 1761 and 1776, Christian Horrebow made regular observations of sunspots from Rundetårn in Copenhagen. Based on these observations he writes in 1775 that “it appears that after the course of a certain number of years, the appearance of the Sun repeats itself with respect to the number and size of the spots”. Thus, Horrebow hypothesized the idea of a cyclic Sun several decades before Heinrich Schwabe discovered the solar cycle and estimated its period. This proves the ability of Horrebow as a sunspot observer. In this article, we present a general overview of the work of Christian Horrebow, including a brief biography and a complete bibliography. We also present a translation from Danish to English of his writings on sunspots in theDansk Historisk Almanak. These writings include tables of daily sunspot measurements of which we discuss the completeness.