Regarding Ann O'Maly's paper 'Fact-checking 'VAT4956.com' I sent a copy to Rolf Furuli receiving his reply by email this morning for his comment and it is just as I always suspected that the differences between experts regarding this tablet amounts to Methodology and the use of different tools or resources. Furuli offers the following comment on O' Maly's paper:
ASTRO PROGRAMS: Furuli, WT author for the Watchtower, Nov.1, 2011 and O' Maly use different astro-programs. Furuli's use of The SkyX is the preferred choice by professional astronomers in the USA. O'Maly uses the Cartes du Ciel 4.2.1 . Furuli comments on this that "For positions in the sixth century BCE, there can be a difference of a half degree, or in some instances even more between different astro-programs".
THE CALCULATED POSITIONS: O'Maly used a hypothesis based on a ellipitical coordinate system as explained on page 2 in her paper. Contrariwise, Furuli used no a system but rather what an observer/ Babylonian scribes saw when looking at the sky on a certain date or putting it simply bt direct observation whereupon he chose to use the Sky x program.
Furuli notes that he had assisted the brother in the Writing Department who wrote the two articles on Chronology with ongoing discussions and the exchanging of drafts for two years prior to the publishing of the two articles. During that period Furuli asked him to find two Witnesses with astronomical knowledge who could test his astro calculations. Furuli met one of the two researchers 15 years ago who had given a lecture at an international astronomical congress in Oslo, Norway. Furuli comments that the findings of these two matched exactly his findings with the only difference of a few minutes in some places.
Furuli further comments that he does not endorse the hypothesis that the Babylonian scribes used the elliptic system as does o' Maly and others but he believes that the calculations of the scribes were not theoretical but based on historical data. The same celestial phenomena would occur at the same intervals, for example, the 18 year cycle of the Moon, such periodic phenomena were the basis for their calculations.
Furuli also advises readers that in his 2nd edn of his Assyrian, Babylonian and Egyptian Chronology all the coordinates of each of these positions namely the 13 lunar sets is given so one could compare O'Maly's positions with his by means of the SkyX program using the coordinates in each case and see which position is correct.
So we have different experts who have different opinions based on their own hypotheses and different methodologies.
scholar JW