The Egyptian X had Sirius (the nose of the Great Dog) at its center:

And the waters of the Nile were drawn up by Sirius. Canopus drank up all the waters and Sirius restored it.

The strong rays of the early summer Sun were followed by rain clouds, which explains why there was no arrow (ray) when the Chinese emperor draw his bow - his mission was not to entice spring light but to induce rain:

Sirius kept pace with the Sun and therefore he stood still in spite of the precession, whereas the stars at the 2nd day in the month of HORA NUI (High Summer) had advanced with 64 days since the time when Sirius had been at Zosma and Coxa:

Hora Ancient name of summer (toga-hora, winter summer). Vanaga. 1. In haste (horahorau). 2. Summer, April; hora nui, March; vaha hora, spring. 3. 'Hour', 'watch'. 4. Pau.: hora, salted, briny. Ta.: horahora, bitter. Mq.: hoáhoá, id. 5. Ta.: hora, Tephrosia piscatoria, to poison fish therewith. Ha.: hola, to poison fish. Churchill. Horahora, to spread, unfold, extend, to heave to; hohora, to come into leaf. P Pau.: hohora, to unfold, to unroll; horahora, to spread out, to unwrap. Mgv.: hohora, to spread out clothes as a carpet; mahora, to stretch out (from the smallest extension to the greatest), Mq.: hohoá, to display, to spread out, to unroll. Ta.: hohora, to open, to display; hora, to extend the hand in giving it. Churchill.

MAY 1 (121)	61	JULY 2	3 (184)	4 (*105)
Ga2-11 (41)		Ga4-20	Ga4-21 (104)	Ga4-22
ω Gemini (105.4), ALZIRR (Navel Button)  = ξ Gemini (105.7), MULIPHEIN (Oaths) = γ Canis Majoris (105.8), MEKBUDA (Contracted) = ζ Gemini (105.9)		11h (167.4) χ Leonis, χ¹ Hydrae (167.1), χ² Hydrae (167.3)	AL SHARAS (The Rib) = β Crateris (168.6)	Al Zubrah-9 / Purva Phalguni-11 ZOSMA (Girdle) = δ Leonis (169.2), COXA (Hips) = θ Leonis (169.4)
July 4 (185)		September 4	5 (248 = 104 + 144)	6
SIRIUS		°August 31	°September 1 (244)	HORA NUI 2
'June 7 (*78)		'August 8 (*140)	9	10 (222)
"May 24 (*64)		"July 25 (*126)	26	27 (208)
NUNKI = σ Sagittarii (288.4), ζ Cor. Austr. (288.5), MANUBRIUM = ο Sagittarii (288.8), ζ Aquilae (288.9)		23h (350.0) υ, θ Gruis (350.0), π Cephei (350.6), ι Gruis (350.9)	SIMMAH = γ Piscium (351.7)	φ Aquarii (352.0), ψ Aquarii (352.4), χ Aquarii (352.6), γ Tucanae, φ Gruis (352.8)
January 3 (368)		March 6 (*350)	7 (66)	8 (432)
°December 30 (364)		°March 2 (*346)	3	4 (63)
'December 7 (*261)		'February 7	8 (*324)	9 (40)
"November 23 (327)		"January 24	25 (*310)	26
OCTOBER 31 (*224)		JANUARY 1	2	3 (*288)

However, 4 precessional days later, at the time of rongorongo, the proper time order had been restored and Aldebaran was now rising with the Sun in day 148 (May 28) and 64 days after the Julian equinox (84):

MAY 1 (121)	57	JUNE 28	29 (180)	SIRIUS	JULY 1 (*102)
Ga2-11 (41)		Ga4-16	Ga4-17 (100)	Ga4-18	Ga4-19
ω Gemini (105.4), ALZIRR (Navel Button)  = ξ Gemini (105.7), MULIPHEIN (Oaths) = γ Canis Majoris (105.8), MEKBUDA (Contracted) = ζ Gemini (105.9)		ν Hydrae (163.1)	no star listed (164) ALTAIR (α Aquilae)	Wings-27 (Snake) η Oct. (165.4), ALKES = α Crateris (165.6)	ANA-TIPU-4 (Upper-side-pillar - where the guards stood) MERAK (Loin) = β Ursae Majoris (166.2), DUBHE (Bear) = α Ursae Majoris (166.7)
July 4 (185)		August 31	September 1	HORA NUI 2	3 (246)
SIRIUS		°August 27	28	29 (*161)	30 (242)
'June 7 (*78)		'August 4 (216)	5 (*137)	6	7
"May 24 (*64)		"July 21	22 / 7	Anakena 23 (204)	24 (*125)
CLOSE TO THE FULL MOON:
NUNKI = σ Sagittarii (288.4), ζ Cor. Austr. (288.5), MANUBRIUM = ο Sagittarii (288.8), ζ Aquilae (288.9)	57	ι Cephei (346.0), λ Aquarii, γ Piscis Austrini, σ Pegasi (346.5)	SCHEAT AQUARII =  δ Aquarii (347.0), ρ Pegasi (347.2), δ Piscis Austrini (347.4), FOMALHAUT (Mouth of the Fish) = α Piscis Austrini, τ Gruis (347.8)	FUM AL SAMAKAH (Mouth of the Fish) = β Piscium (348.3), ζ Gruis (348.5), ο Andromedae (348.9)	Al Fargh al Mukdim-24 / Purva Bhādrapadā-26 / House-13 (Pig) SCHEAT PEGASI = β Pegasi, π Piscis Austrini (349.3), κ Gruis (349.4), MARKAB PEGASI = α Pegasi (349.5)
January 3 (368)		March 2	3	4 (*348)	5 (64)
°December 30 (364)		°February 26	27	28 (*344)	°March 1 (60)
'December 7 (*261)		'February 3	4	5 (36)	6 (*322)
"November 23 (327)		"January 20	21	22	23 (*308)
OCTOBER 31 (*224)		DECEMBER 28	29	30 (364)	31 (*285)

JULY 2	3 (184)	4 (*105)
Ga4-20	Ga4-21 (104)	Ga4-22
11h (167.4) χ Leonis, χ¹ Hydrae (167.1), χ² Hydrae (167.3)	AL SHARAS (The Rib) = β Crateris (168.6)	Al Zubrah-9 / Purva Phalguni-11 ZOSMA (Girdle) = δ Leonis (169.2), COXA (Hips) = θ Leonis (169.4)
September 4	5 (248 = 104 + 144)	6
°August 31	°September 1 (244)	HORA NUI 2
'August 8 (*140)	9	10 (222)
"July 25 (*126)	26	27 (208)
CLOSE TO THE FULL MOON:
23h (350.0) υ, θ Gruis (350.0), π Cephei (350.6), ι Gruis (350.9)	SIMMAH = γ Piscium (351.7)	φ Aquarii (352.0), ψ Aquarii (352.4), χ Aquarii (352.6), γ Tucanae, φ Gruis (352.8)
March 6 (*350)	7 (66)	8 (432)
°March 2 (*346)	3	4 (63)
'February 7	8 (*324)	9 (40)
"January 24	25 (*310)	26
JANUARY 1	2	3 (*288)

Evidently the proper place for the Sun Lion to cross over from the dry Alkes place to a watery environment went via the Loin in Ursa Major (Seven Macaw).

... Again they went on and reached Hanga Hoonu. They saw it, looked around, and gave the name 'Hanga Hoonu A Hau Maka'. On the same day, when they had reached the Bay of Turtles, they made camp and rested. They all saw the fish that were there, that were present in large numbers - Ah! Then they all went into the water, moved toward the shore, and threw the fish (with their hands) onto the dry land. There were great numbers (? ka-mea-ro) of fish. There were tutuhi, paparava, and tahe mata pukupuku. Those were the three kinds of fish. After they had thrown the fish on the beach, Ira said, 'Make a fire and prepare the fish!' When he saw that there was no fire, Ira said, 'One of you go and bring the fire from Hanga Te Pau!' One of the young men went to the fire, took the fire and provisions (from the boat), turned around, and went back to Hanga Hoonu. When he arrived there, he sat down. They prepared the fish in the fire on the flat rocks, cooked them, and ate until they were completely satisfied. Then they gave the name 'The rock, where (the fish) were prepared in the fire with makoi (fruit of Thespesia populnea?) belongs to Ira' (Te Papa Tunu Makoi A Ira). They remained in Hanga Hoonu for five days ...

... According to Manuscript E this event happened somewhere in the interval from Anakena 18 (when the Explorers left Hanga Takaure [the Bay of Flies]) to Anakena 23 (when they reached Rangi Meamea). It is stated that they remained in Hanga Hoonu for 5 days. We can translate these dates to "July 18 - 22:

ST JOHN'S DAY	JUNE 25	26 (177 = 6 * 29½)	27
Ga4-12	Ga4-13 (96)	4-14	Ga4-15
p Carinae (159.3)	φ Hydrae (160.3)	no star listed (161)	VATHORZ POSTERIOR = θ Carinae (162.1), PEREGRINI = μ Velorum, η Carinae (162.6)
August 27	28 (240)	29 (*161)	30
°August 23	24 (236)	25 (*157)	26
'July 31	'August 1	2 (214)	3 (*500)
"July 17	18	19 (200)	20 (*121)
Ka5-9	Ka5-10	Ka5-11	Ka5-12

Counting down to the defeat of Seven Macaw in 3149 B.C. meant moving around 70 precessional days forward in the calendar compared to the time of rongorongo and this would bring us 2 glyphs ahead compared to Ga4-22: