Hallaschka在道尔顿极小期进行的太阳黑子观测
Sunspot Observations Made by Hallaschka during the Dalton Minimum
摘要：
我们介绍和分析了弗朗茨一世的太阳黑子观测。C. 1814年和1816年的哈拉施卡。这些太阳观测是在所谓的道尔顿极小期（Dalton minimum）期间进行的，大约在太阳活动周期6的最大阶段。这些记录非常有价值，因为它们使我们能够完成太阳黑子群数量收集中的观测空白，提高了该时代的覆盖范围。我们分析并比较了Hallaschka的观测结果与其他当代观测者的记录。不幸的是，对太阳黑子面积和位置的分析表明，它们对于科学用途来说太不准确了。但是，我们得出结论，Hallaschka所做的太阳黑子计数与当时其他天文学家所做的相似。Hallaschka的观测证实了道尔顿极小期期间太阳活动的低水平。
英文摘要：
We present and analyse the sunspot observations performed by Franz I. C. Hallaschka in 1814 and 1816. These solar observations were carried out during the so-called Dalton minimum, around the maximum phase of the Solar Cycle 6. These records are very valuable because they allow us to complete observational gaps in the collection of sunspot group numbers, improving its coverage for this epoch. We have analysed and compared the observations made by Hallaschka with the records made by other contemporary observers. Unfortunately, the analysis of the sunspot areas and positions showed that they are too inaccurate for scientific use. But, we conclude that sunspot counts made by Hallaschka are similar to those made by other astronomers of that time. The observations by Hallaschka confirm a low level of the solar activity during the Dalton minimum.
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