The unexpected observations have gone solidly against the predictions of the standard model of the sun. The solar astronomer Lain Nicholson, said of the long period oscillation that if it was a true fundamental period, then the "standard model could not be correct," and that the "central temperature of the sun would be less than half the conventional value." Such a low temperature would, of course, again fit in with the sun being a young star that has not yet achieved a sufficiently high temperature for main-sequence hydrogen burning.<quoted text>
The sun shrinking hypothesis was presented by John Eddy & Aram Boornazian in 1979. The data they analyzed was from a short period of time, 1836-1953. Their data was published merely as an abstract in order to stimulate further scientific discussion and investigation, not as a formal scientific paper. The abstract was immediately jumped on by young-earth creationists as proof of a young earth. It was immediately challenged by most of the scientific community. We now have 55 more years of accurate data that that does not support the hypothesis.
T. M. Brown and J. Christensen-Dalsgaard studied solar photospheric radius from 1981-1987, and released their findings and analysis in 1998. Their results showed a constant radius with minor fluxing variations; but absolutely NONE of the claimed 5-6 feet of shrink per hour.(Brown, T.M. & J. Christensen-Dalsgaard, "Accurate Determination of the Solar Photospheric Radius", Astrophysical Journal Letters, 500(2)Part2: L195-L198, 1998 June 20)
Reports from the San Fernando Solar Observatory indicate that the sun expands and contracts with some variance over the eleven year solar cycle, and other research shows an 80-year cycle of expansion and contraction
The British astronomers J. Christenson-Dalsgaard and D.O. Gough commented that in order to account for the 2 hour 40 minute observation it is "evident that a very drastic change in the solar model would be necessary" and "it is unlikely that any such model can be found."
This striking discovery of the sun's oscillations is not, however, the only evidence of a young sun.