THE D TABLET
 

Once again. October 27 (300) was evidently a place which in principle had been defined already in the Golden Age of the Bull. Since that ancient era the Sun calendar had (ideally) relied on this date. Although the fixed stars had advanced with *64 right ascensin days since then, due to the precession of the cardinal points of the Sun.

Day 236 (AUGUST 24) was where once upon a time the Sun had risen together with η Centauri (*220.4) located at the right elbow of the Centaur, because 236 + 64 = 300 (*220).

AUG 24 (236, *156) *119 TERMINALIA (*339)
Oct 27 (300, *220 = *156 + *64)
121 (or ½ + 119 + ½ = 120)

*120

Da1-1

Da8-1 (121)

Oct 27 (300) Febr 24 (365 + 31 + 24 = 420)
η Centauri (*220.4) ζ Aquarii, δ Gruis (*340.4)

PROCYON

And it was certainly no coincidence that 236 = 8 * 29½. Also the Full Moon relied upon this important place.

Furthermore the Maya astronomers had used 236 in order to integrate Venus in their cosmic structure:

 Phase of Venus

Observed periods

Periods in the Mayan 'map'

Difference

Evening star

263

250

- 13

Black

8

8

0

Morning star

263

236 = 8 * 29½

- 27

Black

50

90

+ 40

Sum

584

584

0

This is glyph line Da1 according to the structure I once upon a time had perceived:

Da1-1 Da1-2 Da1-3 Da1-4
Da1-5 Da1-6 Da1-7 Da1-8 Da1-9
Da1-10 Da1-11 Da1-12 Da1-13 Da1-14 Da1-15
Da1-16 Da1-17 Da1-18 Da1-19 Da1-20

How can I be certain Da1-1 is not beginning at the stars located at AUGUST 24? Answer: because the rongorongo texts seem to always follow the stars when the tablet is turned around.

*120

*5 *85

Da1-1

Da8-1 (121)

Db1-1 (126 + 1)

Db6-13 (212)
Oct 27 (300) Febr 24 (365 + 31 + 24 = 420)

March 1 (425, 60)

May 25 (510, 145)
η Centauri (*220.4) ζ Aquarii, δ Gruis (*340.4)

PROCYON

λ Pegasi (*345.0) AIN (*430. *65)
126 = 121 + 5 86 = 212 - 126

The stars are difficult to perceive in summer, which will explain why there are 364 - 212 = 152 (= 8 * 19) nights 'missing' from the D text.

8 * 29½ - 8 * 19 = 8 * 10½ = 84 (12 weeks) → Julian equinox in day 84 (March 25).