Science Frontiers ONLINE No. 2: January 1978 Issue Contents

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Changes In Solar Rotation

John A. Eddy has continued his historical studies of sunspots from the earliest records to date. Analysis of sunspot drawings suggest that, between 1625 and 1645, the equatorial velocity of the sun was significantly higher than it was earlier and is now. Eddy believes that this acceleration presaged the onset of the peculiar Maunder Minimum, 1645-1715, when the sun was virtually clear of spots.

(Eddy, John, et al; "Anomalous Solar Rotation in the Early 17th Century," 198:824, 1977.)

From Science Frontiers #2, January 1978. © 1978-2000 William R. Corliss

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Science Frontiers Sourcebook Project Reviewed in: Icarus: Volume 41, Issue 3, p. 470-470 1984, Vol.56:3, P.615 1983, Vol.58:3 June 1984, Vol.60:3 Dec 1984, Vol.72:3 Dec 1987 Journal of the Royal Astronomical Society of Canada, Vol. 81, no. 1 1987 American Journal of Physics, Volume 52, Issue 8, p. 764 August 1984 Quotes "Before opening the book, I set certain standards that a volume which treads into dangerous grounds grounds like this must meet. The author scrupulously met, or even exceeded those standards. Each phenomenon is exhaustively documented, with references to scientific journals [..] and extensive quotations" -- "Book Review: The moon and planets: a catalog of astronomical anomalies", The Sourcebook Project, 1985., Corliss, W. R., Journal of the Royal Astronomical Society of Canada>, Vol. 81, no. 1 (1987), p. 24., 02/1987