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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 :) 2513 magisterchessmutt 16-Dec-17 03:08
Re: Let there be Phos :) 349 magisterchessmutt 16-Dec-17 14:12
Re: Let there be Phos :) 391 drew 17-Dec-17 02:30
Re: Let there be Phos :) 260 magisterchessmutt 17-Dec-17 14:17
Re: Let there be Phos :) 352 Sirfiroth 17-Dec-17 21:38
Re: Let there be Phos :) 298 magisterchessmutt 17-Dec-17 22:29
Re: Let there be Phos :) 365 Horatech 18-Dec-17 06:12
Re: Let there be Phos :) 268 magisterchessmutt 18-Dec-17 14:03
Re: Let there be Phos :) 380 Horatech 18-Dec-17 23:27
Re: Let there be Phos :) 312 magisterchessmutt 19-Dec-17 02:49
Re: Let there be Phos :) 285 molder 19-Dec-17 05:00
Re: Let there be Phos :) 293 Horatech 19-Dec-17 06:19
Re: Let there be Phos :) 291 magisterchessmutt 19-Dec-17 06:25
Re: Let there be Phos :) 291 molder 19-Dec-17 07:11
Re: Let there be Phos :) 368 magisterchessmutt 19-Dec-17 11:56
Re: Let there be Phos :) 284 Sirfiroth 19-Dec-17 19:32
Re: Let there be Phos :) 345 magisterchessmutt 20-Dec-17 03:00
Re: Let there be Phos :) 258 Sirfiroth 20-Dec-17 16:03
Re: Let there be Phos :) 287 magisterchessmutt 21-Dec-17 06:22
Re: Let there be Phos :) 254 molder 19-Dec-17 22:08
Re: Let there be Phos :) 288 magisterchessmutt 20-Dec-17 02:08
Re: Let there be Phos :) 278 molder 20-Dec-17 20:57
Re: Let there be Phos :) 310 magisterchessmutt 22-Dec-17 02:33
Re: Let there be Phos :) 277 magisterchessmutt 22-Dec-17 04:23
Re: Let there be Phos :) 288 mmstud 22-Dec-17 08:12
Re: Let there be Phos :) 308 magisterchessmutt 22-Dec-17 10:44
Re: Let there be Phos :) 281 mmstud 22-Dec-17 12:26
Re: Let there be Phos :) 376 magisterchessmutt 23-Dec-17 00:47
Re: Let there be Phos :) 397 magisterchessmutt 24-Dec-17 15:20
Re: Let there be Phos :) 367 magisterchessmutt 24-Dec-17 04:07
Re: Let there be Phos :) 299 drew 18-Dec-17 00:51
Re: Let there be Phos :) 311 magisterchessmutt 18-Dec-17 02:11
Re: Let there be Phos :) 397 mmstud 22-Dec-17 14:44
Re: Let there be Phos :)Doubling a cube 370 molder 22-Dec-17 21:21
Re: Let there be Phos :)Doubling a cube 415 molder 23-Dec-17 22:27
Re: Let there be Phos :)Doubling a cube 336 magisterchessmutt 24-Dec-17 01:55
Re: Let there be Phos :)Doubling a cube 349 magisterchessmutt 26-Dec-17 14:53
Re: Let there be Phos :)Doubling a cube 277 molder 26-Dec-17 21:51
Re: Let there be Phos :)Doubling a cube 290 magisterchessmutt 27-Dec-17 03:36
Re: Let there be Phos :)Doubling a cube 267 molder 27-Dec-17 05:02
Re: Let there be Phos :)Doubling a cube 325 magisterchessmutt 27-Dec-17 11:07
Re: Let there be Phos :)Doubling a cube 308 rodz111 29-Dec-17 22:44
Re: Let there be Phos :)Doubling a cube 245 Sirfiroth 28-Dec-17 18:28
Re: Let there be Phos :)Doubling a cube 326 DavidK 28-Dec-17 19:33
Re: Let there be Phos :)Doubling a cube 343 magisterchessmutt 29-Dec-17 02:42
Re: Let there be Phos :)Doubling a cube 378 Sirfiroth 29-Dec-17 14:27
Re: Let there be Phos :)Doubling a cube 321 DavidK 29-Dec-17 15:05
Re: Let there be Phos :)Doubling a cube 323 magisterchessmutt 29-Dec-17 01:37
Re: Let there be Phos :)Doubling a cube 378 DavidK 29-Dec-17 01:52
Re: Let there be Phos :)Doubling a cube 447 magisterchessmutt 29-Dec-17 03:04
Re: Let there be Phos :)Doubling a cube 257 molder 31-Dec-17 22:57
Re: Let there be Phos :) 383 cladking 28-Dec-17 20:36
Re: Let there be Phos :) 328 magisterchessmutt 29-Dec-17 01:47
Re: Let there be Phos :) 319 cladking 29-Dec-17 02:06
Re: Let there be Phos :) 296 cladking 29-Dec-17 23:02
Re: Let there be Phos :) 425 DavidK 29-Dec-17 10:51
Re: Let there be Phos :) Lunar Target Practice 324 magisterchessmutt 30-Dec-17 03:24
Re: Let there be Phos :) 370 DavidK 29-Dec-17 15:22
Re: Let there be Phos :) 328 magisterchessmutt 30-Dec-17 04:28
Re: Let there be Phos :) 392 DavidK 30-Dec-17 15:56
Re: Let there be Phos :) 287 magisterchessmutt 31-Dec-17 05:32
Re: Let there be Phos :) 387 DavidK 31-Dec-17 10:28
Re: Let there be Phos :) 324 magisterchessmutt 31-Dec-17 12:18
Re: Let there be Phos :) Lunar Reflections 347 magisterchessmutt 01-Jan-18 11:07
Re: Let there be Phos :) Lunar Reflections 352 DavidK 01-Jan-18 11:40
Re: Let there be Phos :) Lunar Reflections 327 magisterchessmutt 01-Jan-18 13:00
Re: Let there be Phos :) Lunar Reflections 329 DavidK 01-Jan-18 13:39
Re: Let there be Phos :) Lunar Reflections 317 magisterchessmutt 02-Jan-18 04:12
Re: Let there be Phos :) Lunar Reflections 357 DavidK 02-Jan-18 09:34
Re: Let there be Phos :) Lunar Reflections 285 magisterchessmutt 02-Jan-18 12:30
Re: Let there be Phos :) Lunar Reflections 395 DavidK 02-Jan-18 13:20
Re: Let there be Phos :) Lunar Reflections 284 magisterchessmutt 03-Jan-18 03:57
Re: Let there be Phos :) Lunar Reflections 242 molder 03-Jan-18 06:00
Re: Let there be Phos :) Lunar Reflections 244 magisterchessmutt 03-Jan-18 07:04
Re: Let there be Phos :) Lunar Reflections 390 molder 03-Jan-18 08:47
Re:A Canonical alternative 318 cloister 03-Jan-18 10:14
Re: Re:A Canonical alternative 255 magisterchessmutt 03-Jan-18 11:16
Re: Re:A Canonical alternative 258 molder 03-Jan-18 11:46
Re: Re:A Canonical alternative 242 magisterchessmutt 03-Jan-18 12:18
Re: Re:A Canonical alternative 284 molder 03-Jan-18 12:34
Re: Re:A Canonical alternative 255 magisterchessmutt 03-Jan-18 13:19
Re: Re:A Canonical alternative 278 cloister 03-Jan-18 15:20
Re: Re:A Canonical alternative 262 magisterchessmutt 03-Jan-18 16:55
Re: Re:A Canonical alternative 365 cloister 05-Jan-18 17:23
Re: Re:A Canonical alternative 270 Origyptian 06-Jan-18 18:14
Re: Re:A Canonical alternative 258 magisterchessmutt 08-Jan-18 04:45
Re: Re:A Canonical alternative 328 cloister 08-Jan-18 11:25
Re: Re:A Canonical alternative 302 DavidK 03-Jan-18 15:37
Re: Re:A Canonical alternative 278 magisterchessmutt 03-Jan-18 17:31
Re: Re:A Canonical alternative 326 DavidK 03-Jan-18 18:54
Re: Re:A Canonical alternative 273 magisterchessmutt 04-Jan-18 03:04
Re: Re:A Canonical alternative 387 DavidK 04-Jan-18 09:55
Re: Re:A Canonical alternative 223 magisterchessmutt 04-Jan-18 11:20
Re: Re:A Canonical alternative 274 DavidK 04-Jan-18 11:55
Re: Re:A Canonical alternative 389 magisterchessmutt 04-Jan-18 12:13
Re: Re:A Canonical alternative 286 Sirfiroth 07-Jan-18 00:00
Re: Re:A Canonical alternative 320 magisterchessmutt 07-Jan-18 00:46
Re: Re:A Canonical alternative 262 magisterchessmutt 07-Jan-18 07:41
Re: Re:A Canonical alternative 326 cloister 07-Jan-18 09:07
Re: Let there be Phos :) 289 magisterchessmutt 07-Jan-18 16:12
Re: Let there be Phos :) 346 DavidK 07-Jan-18 18:28
Re: Let there be Phos :) 328 magisterchessmutt 07-Jan-18 22:43
Re: Let there be Phos :) 336 DavidK 07-Jan-18 23:09
Re: Let there be Phos :) 322 DavidK 07-Jan-18 23:53
Re: Let there be Phos :) 288 magisterchessmutt 08-Jan-18 03:37
Re: Let there be Phos :) 290 magisterchessmutt 08-Jan-18 04:05
Re: Let there be Phos :) 295 DavidK 08-Jan-18 08:25
Re: Let there be Phos :) 271 magisterchessmutt 08-Jan-18 10:28
Re: Let there be Phos :) 300 DavidK 08-Jan-18 10:59
Re: Let there be Phos :) 245 DavidK 08-Jan-18 11:17
Re: Let there be Phos :) 267 magisterchessmutt 08-Jan-18 12:35
Re: Let there be Phos :) 271 DavidK 08-Jan-18 17:45
Re: Let there be Phos :) 272 DavidK 08-Jan-18 19:43
Re: Let there be Phos :) 350 magisterchessmutt 09-Jan-18 03:46
Re: Let there be Phos :) 291 DavidK 09-Jan-18 18:21
Re: Let there be Phos :) The Scottish mile 296 molder 10-Jan-18 13:33
Re: Let there be Phos :) The Scottish mile 261 molder 10-Jan-18 13:57
Re: Let there be Phos :) The Scottish mile 256 DavidK 10-Jan-18 15:07
Re: Let there be Phos :) 219 DavidK 10-Jan-18 16:38
Re: Let there be Phos :) 259 DavidK 10-Jan-18 16:46
Re: Let there be Phos :) 297 DavidK 10-Jan-18 21:18
Re: Let there be Phos :) 267 molder 11-Jan-18 21:54
Re: Let there be Phos :) 267 magisterchessmutt 12-Jan-18 10:29
Re: Let there be Phos :) 236 DavidK 12-Jan-18 11:17
Re: Let there be Phos :) 227 DavidK 12-Jan-18 10:40
Re: Let there be Phos :) 242 magisterchessmutt 12-Jan-18 12:01
Re: Let there be Phos :) 261 DavidK 12-Jan-18 13:06
Re: Let there be Phos :) 240 DavidK 12-Jan-18 12:06
Re: Let there be Phos :) 252 magisterchessmutt 12-Jan-18 12:25
Re: Let there be Phos :) 302 DavidK 12-Jan-18 14:16
Re: Let there be Phos :) 266 magisterchessmutt 13-Jan-18 11:34
Re: Let there be Phos :) 221 DavidK 13-Jan-18 12:04
Re: Let there be Phos :) 275 magisterchessmutt 13-Jan-18 12:31
Re: Let there be Phos :) 360 DavidK 13-Jan-18 12:47
Let there be Phos at the GP 420 DavidK 17-Jan-18 15:13
Re: Let there be Phos :) 295 DavidK 22-Mar-18 22:50
Re: Let there be Phos :) 335 magisterchessmutt 27-Mar-18 21:19
Re: Let there be Phos :) 326 DavidK 07-Apr-18 20:01


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