Sunspot positions and sizes for 1825–1867 from the observations by Samuel Heinrich Schwabe
Sunspot positions and sizes for 1825–1867 from the observations by Samuel Heinrich Schwabe
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根据塞缪尔·海因里希·施瓦贝 (Samuel Heinrich Schwabe) 的观测,得出 1825 年至 1867 年太阳黑子的位置和大小
DOI:
10.1093/mnras/stt961
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发表时间:
2013
影响因子:
4.8
通讯作者:
Usoskin
中科院分区:
文献类型:
--
作者:
Leussu;Mursula;Usoskin
Samuel Heinrich Schwabe made 8486 drawings of the solar disc with sunspots in the period from 1825 November 5 to 1867 December 29. We have measured sunspot sizes and heliographic positions on digitized images of these drawings. A total of about 135 000 measurements of individual sunspots are available in a data base. Positions are accurate to about 5 per cent of the solar radius or to about 3° in heliographic coordinates in the solar-disc centre. Sizes were given in 12 classes as estimated visually with circular cursor shapes on the screen. Most of the drawings show a coordinate grid aligned with the celestial coordinate system. A subset of 1168 drawings have no indication of their orientation. We have used a Bayesian estimator to infer the orientations of the drawings as well as the average heliographic spot positions from a chain of drawings of several days, using the rotation profile of the present Sun. The data base also includes all information available from Schwabe on spotless days.
影响因子:
0.6
作者:
D. K. Lepshokov;A. Tlatov;V. V. Vasil’eva
通讯作者:
V. V. Vasil’eva
DOI:
10.1017/s1743921313002214
发表时间:
2012
期刊:
Proceedings of the International Astronomical Union
影响因子:
--
作者:
A. Diercke;R. Arlt;C. Denker
通讯作者:
C. Denker
影响因子:
6.5
作者:
R. Arlt;H. Froehlich
通讯作者:
H. Froehlich