3. There was a rather tedious and time-consuming work with counting the positions of stars and the positions of glyphs in order to be able to arrange them in parallel like the two sides of a zipper.

Or maybe there are 2 'zippers', one coordinating the path of Sun with the glyphs and another coordinating the path of his pair of Moon wives with the glyphs?

Gradually it became clear that only in few instances was it possible to see what star could be referred to in the G text. At some glyphs I found no significant star and at some glyphs I found several.

In Dawn Breaker was covered the distance from the 5th to the 8th hour - I had already towards the end of Dream Voyager mapped the distance from 0h to 3h. 'Time zero' began at Gb6-25:

61
Gb6-25 (408) Gb6-26 (*1) Gb6-27 Gb6-28
0h 0h04m 0h08m 0h12m
64

There are 60 minutes in an hour and 60 * 24 = 1440 minutes in a year. If each glyph corresponds to a day in a year measured as 365¼ days, then there will be approximately 4 minutes for each day:

1440m / 365¼ = ca 3.9m

I have provisionally counted the supposed positions of the stars in the G text accordingly.

Right ascension 3h is therefore ending at day number 4 / 24 * 365¼ = ca 60.9 counted from spring equinox north of the equator. With 0h at Gb6-25 the 4th right ascension hour should end at glyph number 408 + 60.9 = 469 (only 4 glyphs before the end of side b of the tablet):

Gb8-21 Gb8-22 Gb8-23 Gb8-24 Gb8-25 Gb8-26 (468)
Atiks (464.1), Rana (464.1)   The Pleiades Menkhib (466.6)  Zaurak (467.9)

The beginning of Dawn Breaker thus coincides with turning the tablet over from side b to side a. Or we could say the 5th hour is beginning with the 4 days at the very end of side b:

Gb8-27 (*61) Gb8-28 Gb8-29 Gb8-30 (472)
 4h00m   Beid (471.2) Hyadum I (472.4)
4 days
Gb8-30 (1) Ga1-1 Ga1-2 (475) Ga1-3 Ga1-4 (*69) Ga1-5 (6)
Hyadum II (473.2)   Ain (474.7)   Aldebaran (477.2) Theemin (477.5)

I have counted puo in Gb8-30 twice in order to reach a text which covers 16 * 29½ or 8 lunar double-months (an 'octave'). This gives satisfactory results, but cannot for the moment (like the assumption of 24h = 365¼ days) be more than a provisional assumption.

Interesting is the fact that disregarding the glyphs there is a pair of stars with names which seem to support the idea of a pair (Hyadum I resp Hyadum II, γ and δ¹ Tauri). They are like the posts at a door:

Janus is depicted with a pair of faces, denying the obvious fact that it should be impossible for him to see in the dark. Maybe this idea comes from an origin of Janus as a Moon god - the dark side of the Moon is not completely invisible, Sun-light reflected from Earth is shining on it.

... Janus was perhaps not originally double-headed: he may have borrowed this peculiarity from the Goddess herself who at the Carmentalia, the Carmenta Festival in early January, was addressed by her celebrants as 'Postvorta' and 'Antevorta' - 'she who looks both back and forward' ... (Cfr at Kai Viri.)