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Hello GHMB,

What I have been calling the Giza Grid cycle of 99 Lunar months is actually known by a different name than the Metonic cycle called the Octaeteris cycle as mentioned in this Wiki article:

[en.wikipedia.org]

This cycle of the Moon has been known for countless millennia by many ancient cultures as the article states, and was utilized by the Greeks to compute the Olympic games among other events. And even though both the integer count of this cycle into 99 mos of 29.53125 days is imprecise, as well as the Sothic 4 Year cycle of 1461 days, there does appear to be an adjustment ratio factor which brings this cycle extremely close to the current know value of the Lunar Synodic cycle of 29.5306 days. This ratio is 1837/1836. Now I have been examining the divisor of this ratio 1836, in a few contexts already as it is a multiple / 32 = 57.375 Radian SOL, calculation. But in this application, I shall demonstrate how this particular ratio brings both inaccuracies of the Lunar and Solar cycles of the Egyptian acct. system into precision. Starting with the basics, 99 x 29.53125 day LM, / 365.25 JY = 8.00436345 Yrs. This figure is in excess of an integer number of JY, by the close ratio x 1836/1837 = 8.00006148 JY. Then using this value multiplied by not the Julian, but the more precise Gregorian Calendar cycle 365.2425 days. = 2921.942245 day Octaeteris cycle. Such that when I divide this value by 99 Lunar Months = 29.51456814 days, I get a diminished value of the Lunar Month. But when I then multiply this figure by the aforesaid 1837/1836 ratio, I get 29.53064361 days. Synodic Month. Well, don't that beat all including my former precision calculation of the Luni/Solar cycle using the cube rt. 1892 value I posted previously in the subtopic heading Lunar Target Practice. This being a mere 4.63 seconds off the modern value.

Best regards,

Stephen

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Let there be Phos :) 2688 magisterchessmutt 16-Dec-17 03:08
Re: Let there be Phos :) 491 magisterchessmutt 16-Dec-17 14:12
Re: Let there be Phos :) 490 drew 17-Dec-17 02:30
Re: Let there be Phos :) 353 magisterchessmutt 17-Dec-17 14:17
Re: Let there be Phos :) 448 Sirfiroth 17-Dec-17 21:38
Re: Let there be Phos :) 421 magisterchessmutt 17-Dec-17 22:29
Re: Let there be Phos :) 467 Horatech 18-Dec-17 06:12
Re: Let there be Phos :) 354 magisterchessmutt 18-Dec-17 14:03
Re: Let there be Phos :) 491 Horatech 18-Dec-17 23:27
Re: Let there be Phos :) 394 magisterchessmutt 19-Dec-17 02:49
Re: Let there be Phos :) 374 molder 19-Dec-17 05:00
Re: Let there be Phos :) 403 Horatech 19-Dec-17 06:19
Re: Let there be Phos :) 383 magisterchessmutt 19-Dec-17 06:25
Re: Let there be Phos :) 391 molder 19-Dec-17 07:11
Re: Let there be Phos :) 449 magisterchessmutt 19-Dec-17 11:56
Re: Let there be Phos :) 372 Sirfiroth 19-Dec-17 19:32
Re: Let there be Phos :) 432 magisterchessmutt 20-Dec-17 03:00
Re: Let there be Phos :) 347 Sirfiroth 20-Dec-17 16:03
Re: Let there be Phos :) 380 magisterchessmutt 21-Dec-17 06:22
Re: Let there be Phos :) 342 molder 19-Dec-17 22:08
Re: Let there be Phos :) 397 magisterchessmutt 20-Dec-17 02:08
Re: Let there be Phos :) 370 molder 20-Dec-17 20:57
Re: Let there be Phos :) 399 magisterchessmutt 22-Dec-17 02:33
Re: Let there be Phos :) 416 magisterchessmutt 22-Dec-17 04:23
Re: Let there be Phos :) 396 mmstud 22-Dec-17 08:12
Re: Let there be Phos :) 395 magisterchessmutt 22-Dec-17 10:44
Re: Let there be Phos :) 383 mmstud 22-Dec-17 12:26
Re: Let there be Phos :) 465 magisterchessmutt 23-Dec-17 00:47
Re: Let there be Phos :) 514 magisterchessmutt 24-Dec-17 15:20
Re: Let there be Phos :) 458 magisterchessmutt 24-Dec-17 04:07
Re: Let there be Phos :) 393 drew 18-Dec-17 00:51
Re: Let there be Phos :) 401 magisterchessmutt 18-Dec-17 02:11
Re: Let there be Phos :) 524 mmstud 22-Dec-17 14:44
Re: Let there be Phos :)Doubling a cube 478 molder 22-Dec-17 21:21
Re: Let there be Phos :)Doubling a cube 546 molder 23-Dec-17 22:27
Re: Let there be Phos :)Doubling a cube 431 magisterchessmutt 24-Dec-17 01:55
Re: Let there be Phos :)Doubling a cube 482 magisterchessmutt 26-Dec-17 14:53
Re: Let there be Phos :)Doubling a cube 366 molder 26-Dec-17 21:51
Re: Let there be Phos :)Doubling a cube 452 magisterchessmutt 27-Dec-17 03:36
Re: Let there be Phos :)Doubling a cube 372 molder 27-Dec-17 05:02
Re: Let there be Phos :)Doubling a cube 414 magisterchessmutt 27-Dec-17 11:07
Re: Let there be Phos :)Doubling a cube 422 rodz111 29-Dec-17 22:44
Re: Let there be Phos :)Doubling a cube 339 Sirfiroth 28-Dec-17 18:28
Re: Let there be Phos :)Doubling a cube 432 DavidK 28-Dec-17 19:33
Re: Let there be Phos :)Doubling a cube 440 magisterchessmutt 29-Dec-17 02:42
Re: Let there be Phos :)Doubling a cube 474 Sirfiroth 29-Dec-17 14:27
Re: Let there be Phos :)Doubling a cube 415 DavidK 29-Dec-17 15:05
Re: Let there be Phos :)Doubling a cube 446 magisterchessmutt 29-Dec-17 01:37
Re: Let there be Phos :)Doubling a cube 595 DavidK 29-Dec-17 01:52
Re: Let there be Phos :)Doubling a cube 681 magisterchessmutt 29-Dec-17 03:04
Re: Let there be Phos :)Doubling a cube 354 molder 31-Dec-17 22:57
Re: Let there be Phos :) 479 cladking 28-Dec-17 20:36
Re: Let there be Phos :) 424 magisterchessmutt 29-Dec-17 01:47
Re: Let there be Phos :) 422 cladking 29-Dec-17 02:06
Re: Let there be Phos :) 387 cladking 29-Dec-17 23:02
Re: Let there be Phos :) 531 DavidK 29-Dec-17 10:51
Re: Let there be Phos :) Lunar Target Practice 426 magisterchessmutt 30-Dec-17 03:24
Re: Let there be Phos :) 461 DavidK 29-Dec-17 15:22
Re: Let there be Phos :) 424 magisterchessmutt 30-Dec-17 04:28
Re: Let there be Phos :) 563 DavidK 30-Dec-17 15:56
Re: Let there be Phos :) 372 magisterchessmutt 31-Dec-17 05:32
Re: Let there be Phos :) 495 DavidK 31-Dec-17 10:28
Re: Let there be Phos :) 420 magisterchessmutt 31-Dec-17 12:18
Re: Let there be Phos :) Lunar Reflections 527 magisterchessmutt 01-Jan-18 11:07
Re: Let there be Phos :) Lunar Reflections 466 DavidK 01-Jan-18 11:40
Re: Let there be Phos :) Lunar Reflections 433 magisterchessmutt 01-Jan-18 13:00
Re: Let there be Phos :) Lunar Reflections 427 DavidK 01-Jan-18 13:39
Re: Let there be Phos :) Lunar Reflections 414 magisterchessmutt 02-Jan-18 04:12
Re: Let there be Phos :) Lunar Reflections 492 DavidK 02-Jan-18 09:34
Re: Let there be Phos :) Lunar Reflections 420 magisterchessmutt 02-Jan-18 12:30
Re: Let there be Phos :) Lunar Reflections 507 DavidK 02-Jan-18 13:20
Re: Let there be Phos :) Lunar Reflections 373 magisterchessmutt 03-Jan-18 03:57
Re: Let there be Phos :) Lunar Reflections 341 molder 03-Jan-18 06:00
Re: Let there be Phos :) Lunar Reflections 340 magisterchessmutt 03-Jan-18 07:04
Re: Let there be Phos :) Lunar Reflections 493 molder 03-Jan-18 08:47
Re:A Canonical alternative 427 cloister 03-Jan-18 10:14
Re: Re:A Canonical alternative 351 magisterchessmutt 03-Jan-18 11:16
Re: Re:A Canonical alternative 387 molder 03-Jan-18 11:46
Re: Re:A Canonical alternative 340 magisterchessmutt 03-Jan-18 12:18
Re: Re:A Canonical alternative 375 molder 03-Jan-18 12:34
Re: Re:A Canonical alternative 347 magisterchessmutt 03-Jan-18 13:19
Re: Re:A Canonical alternative 372 cloister 03-Jan-18 15:20
Re: Re:A Canonical alternative 353 magisterchessmutt 03-Jan-18 16:55
Re: Re:A Canonical alternative 457 cloister 05-Jan-18 17:23
Re: Re:A Canonical alternative 351 Origyptian 06-Jan-18 18:14
Re: Re:A Canonical alternative 347 magisterchessmutt 08-Jan-18 04:45
Re: Re:A Canonical alternative 420 cloister 08-Jan-18 11:25
Re: Re:A Canonical alternative 397 DavidK 03-Jan-18 15:37
Re: Re:A Canonical alternative 375 magisterchessmutt 03-Jan-18 17:31
Re: Re:A Canonical alternative 421 DavidK 03-Jan-18 18:54
Re: Re:A Canonical alternative 398 magisterchessmutt 04-Jan-18 03:04
Re: Re:A Canonical alternative 490 DavidK 04-Jan-18 09:55
Re: Re:A Canonical alternative 324 magisterchessmutt 04-Jan-18 11:20
Re: Re:A Canonical alternative 412 DavidK 04-Jan-18 11:55
Re: Re:A Canonical alternative 490 magisterchessmutt 04-Jan-18 12:13
Re: Re:A Canonical alternative 379 Sirfiroth 07-Jan-18 00:00
Re: Re:A Canonical alternative 415 magisterchessmutt 07-Jan-18 00:46
Re: Re:A Canonical alternative 369 magisterchessmutt 07-Jan-18 07:41
Re: Re:A Canonical alternative 424 cloister 07-Jan-18 09:07
Re: Let there be Phos :) 429 magisterchessmutt 07-Jan-18 16:12
Re: Let there be Phos :) 447 DavidK 07-Jan-18 18:28
Re: Let there be Phos :) 432 magisterchessmutt 07-Jan-18 22:43
Re: Let there be Phos :) 476 DavidK 07-Jan-18 23:09
Re: Let there be Phos :) 430 DavidK 07-Jan-18 23:53
Re: Let there be Phos :) 396 magisterchessmutt 08-Jan-18 03:37
Re: Let there be Phos :) 391 magisterchessmutt 08-Jan-18 04:05
Re: Let there be Phos :) 392 DavidK 08-Jan-18 08:25
Re: Let there be Phos :) 363 magisterchessmutt 08-Jan-18 10:28
Re: Let there be Phos :) 396 DavidK 08-Jan-18 10:59
Re: Let there be Phos :) 340 DavidK 08-Jan-18 11:17
Re: Let there be Phos :) 357 magisterchessmutt 08-Jan-18 12:35
Re: Let there be Phos :) 369 DavidK 08-Jan-18 17:45
Re: Let there be Phos :) 364 DavidK 08-Jan-18 19:43
Re: Let there be Phos :) 453 magisterchessmutt 09-Jan-18 03:46
Re: Let there be Phos :) 388 DavidK 09-Jan-18 18:21
Re: Let there be Phos :) The Scottish mile 390 molder 10-Jan-18 13:33
Re: Let there be Phos :) The Scottish mile 343 molder 10-Jan-18 13:57
Re: Let there be Phos :) The Scottish mile 346 DavidK 10-Jan-18 15:07
Re: Let there be Phos :) 303 DavidK 10-Jan-18 16:38
Re: Let there be Phos :) 337 DavidK 10-Jan-18 16:46
Re: Let there be Phos :) 388 DavidK 10-Jan-18 21:18
Re: Let there be Phos :) 382 molder 11-Jan-18 21:54
Re: Let there be Phos :) 357 magisterchessmutt 12-Jan-18 10:29
Re: Let there be Phos :) 319 DavidK 12-Jan-18 11:17
Re: Let there be Phos :) 318 DavidK 12-Jan-18 10:40
Re: Let there be Phos :) 343 magisterchessmutt 12-Jan-18 12:01
Re: Let there be Phos :) 345 DavidK 12-Jan-18 13:06
Re: Let there be Phos :) 313 DavidK 12-Jan-18 12:06
Re: Let there be Phos :) 396 magisterchessmutt 12-Jan-18 12:25
Re: Let there be Phos :) 405 DavidK 12-Jan-18 14:16
Re: Let there be Phos :) 359 magisterchessmutt 13-Jan-18 11:34
Re: Let there be Phos :) 314 DavidK 13-Jan-18 12:04
Re: Let there be Phos :) 359 magisterchessmutt 13-Jan-18 12:31
Re: Let there be Phos :) 580 DavidK 13-Jan-18 12:47
Let there be Phos at the GP 522 DavidK 17-Jan-18 15:13
Re: Let there be Phos :) 382 DavidK 22-Mar-18 22:50
Re: Let there be Phos :) 431 magisterchessmutt 27-Mar-18 21:19
Re: Let there be Phos :) 412 DavidK 07-Apr-18 20:01


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