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The Egyptian pyramids may align with an ancient north star [Thuban]. NASA scientists found that star undergoes never-before-seen eclipses.

Quote

For the ancient Egyptians, it may have served as the north star.

About 4,700 years ago, when the Egyptians were building the earliest pyramids, Thuban was likely the axis around which all the other stars appeared to spin at night. Some researchers think the pyramids were built to point directly toward Thuban for that reason.

The text of the latter: Astronomical Orientation of the Pyramids

It is interesting that according the first article Thuban is actually a pair of stars in which they can eclipse on another.

Rawlins and Pickering show that Kate Spence had an error in her calculations and according to them the corrected dates:

"This implies dates of 2638 BC for Khufu’s pyramid and 2607 BC for Khafre’s.(Error estimates could be 2–10 years,depending on assumptions regarding the builders’ craftmanship.)"

They also note:

"It seems odd that either method would have been used before the time when it was correct. Because the best pyramid orientations occur for the two greatest pyramids,this could simply indicate that engineering science peaked at the time of Khufu–Khafre. Thuban passed within 0.1of the pole in 2800 BC, a chance event that may have stimulated the historical flowering of celestially based surveying, which was unquestionably used for the pyramids built soon after that at Giza".

As I note in the OP:

Thuban achieved its closest position to true North around 2,830BC remaining within 1 degree of this position for nearly 200yrs.

For repeating again:

Quote

The averages of the 1995 RCD study are as follows:
Sakkara-2768 BC
Bent Pyramid-2720 BC
Meidum Pyramid-2705 BC
Abu Roash Pyramid-2804 BC
Abu Roash Temple-2795 BC
G1-2738 BC
G2-2765 BC
G3 2710 BC

While Rawlins and Pickering dates are within this 200yr period of Thuban being within 1 degree of the celestial north pole, the RCD suggest the dates of construction should be pushed back farther still.



Edited 3 time(s). Last edit at 09-Jan-20 04:29 by Thanos5150.

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Subject Views Written By Posted
Thuban and the Descending Passages-The Key to Dating the Pyramids? 2145 Thanos5150 19-Oct-14 01:05
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 607 Thunderbird 19-Oct-14 02:08
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 496 Audrey 19-Oct-14 03:58
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 501 Thanos5150 19-Oct-14 05:32
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 486 Audrey 19-Oct-14 08:43
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 450 Spiros 19-Oct-14 19:05
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 488 Audrey 20-Oct-14 02:13
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 457 Spiros 23-Oct-14 04:07
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 480 Thanos5150 19-Oct-14 19:50
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 460 Audrey 19-Oct-14 21:50
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 506 Thanos5150 20-Oct-14 01:46
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 421 Audrey 20-Oct-14 03:14
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 560 Thanos5150 20-Oct-14 04:34
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 970 Thanos5150 20-Oct-14 06:03
The Key to Dating the Pyramids? 396 DScribr 18-Nov-16 21:42
Re: The Key to Dating the Pyramids? 318 Thanos5150 19-Nov-16 17:09
Re: The Key to Dating the Pyramids? 370 Warwick 19-Nov-16 19:27
Re: The Key to Dating the Pyramids? 360 Thanos5150 19-Nov-16 23:23
Earliest known serekh? 355 DScribr 20-Nov-16 01:17
Re: Earliest known serekh? 275 Thanos5150 20-Nov-16 02:58
Re: Earliest known serekh? 464 DScribr 20-Nov-16 16:58
Re: The Key to Dating the Pyramids? 292 Warwick 20-Nov-16 06:17
Re: The Key 294 DScribr 19-Nov-16 19:35
Re: The Key 314 Thanos5150 19-Nov-16 22:57
Re: The Key 280 DScribr 20-Nov-16 01:20
P.S. three-in-one 288 DScribr 20-Nov-16 01:30
Re: P.S. three-in-one 314 Thanos5150 20-Nov-16 02:06
Re: The Key 327 Thanos5150 19-Nov-16 23:46
Re: The Key 293 DScribr 20-Nov-16 01:26
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 490 Audrey 21-Oct-14 03:13
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 953 Thanos5150 21-Oct-14 21:03
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 471 Audrey 22-Oct-14 04:33
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 519 Thanos5150 22-Oct-14 21:55
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 406 Audrey 23-Oct-14 06:19
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 479 Thanos5150 24-Oct-14 04:24
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 443 Audrey 25-Oct-14 00:53
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 394 Thanos5150 27-Oct-14 04:41
Viewing Stars By Day! 342 DScribr 19-Nov-16 02:36
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 501 Graham Chase 19-Oct-14 10:24
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 505 shiningfromwithin 19-Oct-14 21:12
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 496 Thanos5150 20-Oct-14 02:09
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 472 Graham Chase 20-Oct-14 10:51
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 475 Thanos5150 20-Oct-14 17:08
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 420 Graham Chase 20-Oct-14 19:07
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 467 Thanos5150 20-Oct-14 19:28
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 459 Graham Chase 20-Oct-14 20:35
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 435 Audrey 21-Oct-14 03:25
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 466 Graham Chase 21-Oct-14 08:30
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 288 Lee McGiffen 20-Nov-16 06:53
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 408 drew 22-Oct-14 00:01
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 552 Thanos5150 22-Oct-14 16:49
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 471 drew 22-Oct-14 22:10
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 392 Thanos5150 23-Oct-14 00:11
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 413 drew 23-Oct-14 07:46
"Black Genesis" 449 David L 22-Oct-14 17:11
Re: "Black Genesis" 383 Graham Chase 22-Oct-14 17:22
Re: "Black Genesis" 426 Graham Chase 22-Oct-14 17:55
Re: "Black Genesis" 428 David L 23-Oct-14 12:11
Re: "Black Genesis" 468 Spiros 23-Oct-14 15:58
Re: "Black Genesis" 390 Audrey 24-Oct-14 00:37
Re: "Black Genesis" 576 Spiros 24-Oct-14 04:14
Re: "Black Genesis" 493 Audrey 24-Oct-14 17:33
inscription 508 Spiros 25-Oct-14 20:46
Re: inscription 430 Audrey 26-Oct-14 01:40
Re: inscription 406 Spiros 27-Oct-14 04:00
the shafts - Amphipolis tomb 399 Spiros 23-Oct-14 17:19
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 588 Audrey 24-Oct-14 02:18
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 641 Thanos5150 21-Jun-16 02:43
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 334 Manu 20-Nov-16 00:20
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 269 Thanos5150 20-Nov-16 05:53
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 355 Manu 20-Nov-16 07:14
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 341 Lee McGiffen 20-Nov-16 06:05
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 439 Manu 20-Nov-16 07:53
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 44 Thanos5150 10-Jan-20 00:41
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 89 Thanos5150 09-Jan-20 02:46
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 56 engbren 09-Jan-20 08:01
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 49 Thanos5150 09-Jan-20 16:59
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 35 engbren 09-Jan-20 21:52
Path of the Pole 73 hendrik dirker 10-Jan-20 04:22
Re: Thuban and the Descending Passages-The Key to Dating the Pyramids? 41 drew 10-Jan-20 00:00
the problem 72 Spiros 11-Jan-20 15:31


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