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No. 96: Nov-Dec 1994

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Unusual Lunar Halo

July 29, 1993. North Pacific Ocean. From the m.v. BP Admiral.

"At 1045 UTC a large, very well defined and complete halo was seen around the 10-day-old moon. Vertical angles were taken by sextant while horizonal angles were found by gyro repeater.

"...the area inside the halo was inky black with the inner edge of the halo being very clear cut and well defined; a 'spiked' effect was seen on the outer edge."

(Ronald, J.M.; "Halo," Marine Observer, 64:105, 1994.)

Comment. The angular diameter of the halo is normal, but the inky black interior is very rare. The same dark effect is sometimes seen between primary and secondary rainbows and has an acceptable explanation. However, the radial spokes are not accounted for by halo theory.

From Science Frontiers #96, NOV-DEC 1994. 1994-2000 William R. Corliss

Science Frontiers Sourcebook Project Reviewed in:

Quotes

  • "A sourcebook of unexplained phenomena is therefore a valuable addition to a collection of scientific literature. William R. Corliss has provided this in the past with his source books of scientific anomalies in several subjects, and now he has provided it for astronomy. He has done an excellent job of collecting and editing a large amount of material, taken in part from scientific journals and in part from scientific reporting in the popular or semi-scientific press." -- "The Mysterious Universe: A Handbook of Astronomical Anomalies", reviwed by Thomas Gold, Cornell University, in Icarus, vol.41, 1980

  • "An interesting, systematic presentation of unusual weather [..] This book is recommended for a general audience" --"Corliss, William R., Tornados, Dark Days, Anomalous Precipitation, and Related Weather Phenomena, Sourcebook Project, 1983.", revieweed in Choice, September 1983
  • "..the science is necessarily somewhat speculative, but Corliss's symthesis is based on reputable sources." -- "Corliss, William R. (Compiler). Lightning, Auroras, Nocturnal Lights, and Related Luminous Phenomena" reviwed by Joseph M. Moran, Univ. of Wisconsin in Science Books and Films, Sep/Oct 1983

  • "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