VAT 4956 - COMPARISON OF THE LUNAR THREE TIME INTERVALS FOR YEARS 568/7 B.C.E. AND 588/7 B.C.E.
The online Sky View Café (SVC) and the Cartes du Ciel* (CdC) astronomy programs have been used for these results.
Observer's location: Babylon, 32° 33' N / 44° 24' E.
SR = sunrise; SS = sunset; MR = moonrise; MS = moonset.
568/7 B.C.E., Nisanu 1 = April 22/23
Month/Day | Julian Date | Interval | Text | SVC | Difference | CdC | Difference |
I.14 | May 6 a.m., 568 | SR-MS | 4° | 3.75° | 0.25° | 3.5° | 0.5° |
II.26 | June 17 a.m., 568 | MR-SR | 23° | 23° | 0° | 29.25° | 6.25° |
III.1 | June 20 p.m., 568 | SS-MS | 20° | 22.75° | 2.75° | 19° | 1° |
III.15 | July 5 a.m., 568 | SR-MS | 7.5° | 8.25° | 0.75° | 10.75° | 3.25° |
XI.1 | Feb 12 p.m., 567 | SS-MS | 14.5° | 17.25° | 2.75° | 19.25° | 4.75° |
XII.1 | Mar 14 p.m., 567 | SS-MS | 25° | 26° | 1° | 27.75° | 2.75° |
XII.12 | Mar 26 a.m., 567 | SR-MS | 1.5° | 0.5° | 1° | 0.25° | 1.25° |
Comments:
SVC's range of difference between its results and that of the text is 0° to 2.75°. Average difference 1.2°.
CdC's range of difference between its results and that of the text is 0.5° to 6.25°. Average difference 2.8°.
Conclusion:
Even though the CdC program seems to be a little more erratic with the accuracy of its time interval results compared to SVC, every 568/7 B.C.E. Lunar Three time interval is accounted for and mostly agrees with the text's figures. This set of lunar data confirms the year as correct.
588/7 B.C.E., Nisanu 1 = May 2/3 (Furuli's calendar)
Month/Day | Julian Date | Interval | Text | SVC | Difference | CdC | Difference |
I.14 | May 16 a.m., 588 | SR-MS | 4° | ! | ! | ! | ! |
II.26 | June 27 a.m., 588 | MR-SR | 23° | 27.75° | 4.75° | 35° | 12° |
III.1 | June 301 p.m., 588 | SS-MS | 20° | 5.5° | 14.5° | 4.75° | 15.25° |
III.15 | July 15 a.m., 588 | SR-MS | 7.5° | ! | ! | ! | ! |
XI.1 | Feb 22 p.m., 587 | SS-MS | 14.5° | 9.75° | 4.75° | 12.25° | 2.25° |
XII.1 | Mar 24 p.m., 587 | SS-MS | 25° | 21.5° | 3.5° | 23.25° | 1.75° |
XII.12 | Apr 52 a.m., 587 | SR-MS | 1.5° | ! | ! | ! | ! |
Notes:
! No measurement of the type specified on the tablet could be taken that day according to these programs' simulations.
1 This measurement could not have been taken on this date as it was before first lunar crescent visibility. Still, the computed values are included.
2 Furuli has April 3/4, but this would be a counting error on his part if Addaru 1 = March 24. There is some confusion with his dates for 587 B.C.E.
Comments:
SVC's range of difference between its results and that of the text, when a time interval could be taken, is 3.5° to 14.5°. Average difference 6.9°.
CdC's range of difference between its results and that of the text, when a time interval could be taken, is 1.75° to 15.25°. Average difference 7.8°.
Conclusion:
These Lunar Three time intervals, omitted from Furuli's (and thus the Watchtower's) study of the tablet's lunar data, clearly confirms that the May-based year 588/7 B.C.E. can be confidently excluded as a match for VAT 4956.
588/7 B.C.E., Nisanu 1 = April 3/4 (Parker and Dubberstein's tables)
Month/Day | Julian Date | Interval | Text | SVC | Difference | CdC | Difference |
I.14 | Apr 17 a.m., 588 | SR-MS | 4° | ! | ! | ! | ! |
II.26 | May 29 a.m., 588 | MR-SR | 23° | 17.5° | 5.5° | 24° | 1° |
III.1 | June 1 p.m., 588 | SS-MS | 20° | 13.5° | 6.5° | 11.5° | 8.5° |
III.15 | June 16 a.m., 588 | SR-MS | 7.5° | 5.75° | 1.75° | 6.75° | 0.75° |
XI.1 | Jan 24 p.m., 587 | SS-MS | 14.5° | 16.25° | 1.75° | 20° | 5.5° |
XII.1 | Feb 23 p.m., 587 | SS-MS | 25° | 27.75° | 2.25° | 29.5° | 4.5° |
XII.12 | Mar 7 a.m., 587 | SR-MS | 1.5° | ! | ! | ! | ! |
Notes:
! No measurement of the type specified on the tablet could be taken that day according to these programs' simulations.
Comments:
SVC's range of difference between its results and that of the text, when a time interval could be taken, is 1.75° to 6.5°. Average difference 3.5°.
CdC's range of difference between its results and that of the text, when a time interval could be taken, is 0.75° to 8.5°. Average difference 4°.
Conclusion:
These 588/7 B.C.E. Lunar Three results fare better than those in the previous table. However, it's clear that 568/7 B.C.E. remains the far better match out of the three scenarios.
* In The Watchtower, November 1, 2011, p. 28, note 19, Cartes du Ciel is referenced as one of the programs used to analyze VAT 4956's lunar data.