Long term variations of solar radius

被引：0
|
作者：
Costantino Sigismondi
A. B. Morcos
机构：
[1] ICRA-Sapienza University of Rome,Dept. Fizeau
[2] University of Nice Sophia-Antipolis,undefined
[3] Istituto Ricerche Solari Locarno,undefined
[4] IRSOL,undefined
[5] National Research Institute of Astronomy and Geophysics (NRIAG) Helwan Observatory,undefined
来源：
General Relativity and Gravitation | 2011年 / 43卷
关键词：
Solar physics; Astrometry; Eclipses; Solar activity;
D O I：
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中图分类号：
学科分类号：
摘要：
Total and annular eclipses allow us to measure the angular solar diameter at unit distance up to an accuracy of some hundredths of arcsecond. Data of lunar limb features from Japanese mission Kaguya will be useful to detect also the solar oblateness signal, relevant from a General Relativistic point of view. Useful eclipse data are available for 1567, 1715, 1869, 1925 and from 1966 to 2009 with uneven sampling: only these data can allow a study of solar diameter evolution with significant resolution on secular basis.
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页码：1197 / 1202
页数：5
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