Auriga is high up and Orion is far down. 6h is at the northern midsummer with the Sun high up and close to Auriga. The Butting One (Elnath) could be the name for the northern tip of the Bull's right horn because here the Sun is pushed high. Such thoughts may have inspired the ancient Cretan sport of leaping over a bull with the help of his horn:

The 3 figures, one at left, one at right, and one making the daring jump - potentially deadly (salto mortal) - should be read from left to right - following the events in time.

The reversed figure, standing straight and tall, could illustrates how beyond high summer there is a kind of mirror reversal, with the high sky gradually returning to normal again. The face of the Sun is honoured by not turning your back to him. In ancient China the emperor always sat with his back towards the north.

In Minoan times (from ca 2600 BC to its end with the explosion of Santorini ca 1600 BC) Elnath would have risen with the Sun around [(2600 + 1600) / 2 + 1843] / 71 = about 33 days earlier than in rongorongo times. Not in June 9 (160) but in day 160 - 33 = 127 or May 7. This was 172 - 127 = 45 days before midsummer.

Possibly the idea of a leap day originated with Elnath. Symmetry could then demand high summer should end approximately 45 days after midsummer. Or ca 90 days after Elnath. May 7 + 90 = ca day 217 (August 5). 217 - 80 = RA day 137.

Anyhow, let's go back to my description of glyph line Ga1. At present it continues like this:

The Milky Way river was like a barrier which the Sun, the great Fire in the sky, would be unable to pass. Water quenches fires. But there was a trick. He could sire a new Sun (son) and when the new Sun evolved into his proper shape inside his shell - the Sun was a bird - he would be protected from the watery environment.

We can perhaps interpret Ga1-16 as a bird shell with a growing embryo inside:

Perhaps there were 2 ways to cross the Milky Way river, one by following the left horn of the Bull straight forward, protected by a shell, and the other to make a daring leap using the right horn of the Bull.

The straight forward way leads to the tip of the left horn, to Heavenly Gate, to 'fucking', ζ Tauri:

Ga1-20	Ga1-21
Three Stars-21 / ANA-IVA (7)	ο Aurigae (85.8), γ Leporis (85.9) Yang Mun
Heavenly Gate, ν Columbae (84.0), ALNITAK, PHAKT (Phaet) (84.7)
June 13 (530)	14 (165)
ºJune 9 (160)	10 (*81)
'May 17 (137)	18 (*58)
"May 3 (*43)	4 (490)
λ Arae (267.1), Girtab, ο Serpentis (267.6)	Kelb Alrai, μ Arae (268.1), Kew Ho (268.6), η Pavonis (268.7), Apollyon (268.9)
December 13 (713)	14 (*268)
ºDecember 9 (709)	10 (344)
'November 16 (*240)	17 (321)
"November 2 (*226)	3 (307)

Manacle	ziqq	Phoenician zayin		Greek zeta	Ζ (ζ)
... Zeta (uppercase Ζ, lowercase ζ; Greek: ζήτα ... is the sixth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 7. It was derived from the Phoenician letter Zayin. Letters that arose from zeta include the Roman Z and Cyrillic З ... Zayin (also spelled Zain or Zayn or simply Zay) is the seventh letter of many Semitic abjads ... It represents the sound [z]. The Phoenician letter appears to be named after a sword or other weapon. (In Biblical Hebrew, 'Zayin'  means sword, and the verb 'Lezayen' means to arm. In modern Hebrew, 'zayin' means penis and 'lezayen' is a vulgar term which generally means to perform sexual intercourse and is used in a similar fashion to the English word fuck, although the older meaning survives in 'maavak mezuyan' (armed struggle) and 'beton mezuyan' (armed, i.e., reinforced concrete). The Proto-Sinaitic glyph according to Brian Colless may have been called ziqq, based on a hieroglyph depicting a 'manacle'.