6. If we compare with the K text we can find Acubens at a glyph which is similar to but not identical with Ga3-11:

Ga3-11 Ga3-12 (72)
Ka4-5 (72) Ka4-6

Number 72 at Ka4-5 is based on my reconstruction of how many glyphs there should be in line Ka1, viz. 19 visible + 5 non-visible.

Both 5 and 12 are Sun-days, but the honu glyph in K is different, a fat one which presumably refers to Sun present - in winter people are not well fed.

If we consider the effects of precession it is possible that according to the 'time horizon' of the texts (or only of the K text) Acubens was rising somewhat earlier than 136 days after spring equinox (north of the equator). Maybe we should read the pair of glyphs together:

Acubens, Talitha Borealis
Ga3-11 (*135) Ga3-12 (72)
Ka4-5 (72) Ka4-6 (*136)

To get honu in Ka4-6 (where 4 * 6 = 24) in the same position as honu in Ga3-12 we cannot add 64, we can add only 63. 73 + 63 = 136 is the current postion of Acubens.

The need to add only 63 instead 64 in K is no isolated phenomenon, as I remember it. Earlier I have noticed how the H text also seems to assume an addition with 63 days at the beginning of its text.

72 is equal to 360 / 5 and 73 is equal to 365 / 5, and 73 in a way is therefore a measure of higher precision.

As to the difference in design at the top end of Ka4-5 compared to Ga3-11 I think we should read 'beginning' (an open eager mouth) in Ga3-11 in contrast to 'end' (the tail end of an arrow) in Ka4-5. The tail sign agrees with the following honu in a Moon day and the mouth sign with honu in a Sun day - at the beginning of summer everyone is hungry and at its end all are so fat they are ready to fall on their faces.