Guidelines for measuring solar radius with Baily beads analysis

被引：0
|
作者：
Costantino Sigismondi
机构：
[1] Sapienza University of Rome and ICRA,International Center for Relativistic Astrophysics
[2] Université de Nice-Sophia Antipolis,Laboratoire H. Fizeau UMR 6525
[3] IRSOL,undefined
[4] Istituto Ricerche Solari Locarno,undefined
来源：
Science in China Series G: Physics, Mechanics and Astronomy | 2009年 / 52卷
关键词：
solar eclipses; observations; ephemerides; solar radius variations;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
By inspection of central eclipses videorecords, data of Baily beads timings are retrievable. Knowing the lunar limb profile at the moment of the eclipse we evaluate the excess or defect of solar limb when the Sun is assumed at its standard radius. Two procedures of data analysis are here presented: one based on limb heights and the other on times. While these methods are based upon Occult 4 software, they can be used with other ephemerides and new lunar profiles. The example of 2006 total eclipse data, with its remarkably negative value of ΔR= − 0.41“± 0.04”, is presented.
引用
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页码：1773 / 1777
页数：4
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