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Observations of a probable change in the solar radius between 1715 and 1979A decrease in the solar radius is determined using the technique of Dunham and Dunham (1973), in which timed observations are made just inside the path edges. When the method is applied to the solar eclipses of 1715, 1976, and 1979, the solar radius for 1715 is 0.34 + or - 0.2 arc second larger than the recent values, with no significant change between 1976 and 1979. The duration of totality is examined as a function of distance from the edges of the path. Corrections to the radius of the sun derived from observations of the 1976 and 1979 eclipses by the International Occultation Timing Association are also presented.
Document ID
19810030756
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dunham, D. W.
(International Occultation Timing Association Silver Spring, Md., United States)
Sofia, S.
(NASA Goddard Space Flight Center Laboratory for Planetary Atmospheres, Greenbelt, Md., United States)
Fiala, A. D.
(U.S. Naval Observatory Washington, D.C., United States)
Muller, P. M.
(Anglo-American Computers, Ltd. Newcastle-upon-Tyne, United Kingdom)
Herald, D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 11, 2013
Publication Date
December 12, 1980
Publication Information
Publication: Science
Volume: 210
Subject Category
Solar Physics
Accession Number
81A15160
Distribution Limits
Public
Copyright
Other

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