Long term variations of solar radius

Details Long term variations of solar radius Long term variations of solar radius

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011gregr..43.1197s&link_type=abstract

General Relativity and Gravitation, Volume 43, Issue 4, pp.1197-1202

Physics

1

Solar Physics, Astrometry, Eclipses, Solar Activity

Scientific paper

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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