caa a22 4500 445387009 CHVBK 20180317143035.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10714-010-0958-8 doi (NATIONALLICENCE)springer-10.1007/s10714-010-0958-8 Long term variations of solar radius [Elektronische Daten] [Costantino Sigismondi, A. Morcos] 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. Springer Science+Business Media, LLC, 2010 Solar physics nationallicence Astrometry nationallicence Eclipses nationallicence Solar activity nationallicence Sigismondi Costantino ICRA-Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy aut Morcos A. National Research Institute of Astronomy and Geophysics (NRIAG) Helwan Observatory, Cairo, Egypt aut General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/4(2011-04-01), 1197-1202 0001-7701 43:4<1197 2011 43 10714 https://doi.org/10.1007/s10714-010-0958-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-010-0958-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sigismondi Costantino ICRA-Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy aut NATIONALLICENCE 700 1- Morcos A. National Research Institute of Astronomy and Geophysics (NRIAG) Helwan Observatory, Cairo, Egypt aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/4(2011-04-01), 1197-1202 0001-7701 43:4<1197 2011 43 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer