A REVISED LISTING OF THE NUMBER OF SUNSPOT GROUPS MADE BY PASTORFF, 1819 TO 1833

被引：16

作者：

HOYT, DV ^{[1
]}

SCHATTEN, KH ^{[1
]}

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771

来源：

SOLAR PHYSICS | 1995年 / 160卷 / 02期

关键词：

D O I：

10.1007/BF00732818

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

J. W. Pastorff of Drossen, Germany, made about 1477 observations of sunspots between 1819 and 1833. These observations were erroneously interpreted by A. C. Ranyard in 1874 and then used by Rudolf Wolf in his calculations of the Wolf Sunspot Numbers. The result is a noisier daily time series and overestimation of the monthly and yearly means for these years. Pastorff was actually a very good observer. In this paper, Pastorff's original observations are reexamined and more nearly correct values for the number of sunspot groups are tabulated. We show some examples of the problems created by Ranyard's interpretation and the consequences for the history of solar activity that a correct interpretation of Pastorff's observations will have. Pastorff's observations provide valuable information on the first strong cycle after the Dalton Minimum (1795-1823).

引用

页码：393 / 399

页数：7