1. It seems possible to put in approximate parallel not only prominent stars with the signs in the Babylonian zodiac, but also to connect them with the Easter Island months and the glyph lines in G:

Question marks are still needed at the end of the Sun cycle, because the G text evidently stretches for more than 365 days, which creates uncertainty.

The dry part of the year was probably regarded to begin with Hora iti ('February' = August) and end with the rains of Vaitu nui ('October' = April).

Both the beginning of the rainy season (at Aquarius) and its end (at Gemini) were characterized by double-months:

'January'	'February'	'March'
He Anakena (a1)	Hora iti (a2)	Hora nui (a3)
3 months
3 months
Vaitu nui (b2)	Vaitu potu (b3)	He Maro (b4)
'October'	'November'	'December'

With 'March' comes the first period of the henua calendar:

1
	Ga2-27 ('1)	Ga2-28	Ga2-29	Ga3-1
	Ga3-2	Ga3-3	Ga3-4	Ga3-5

The 'climbing bird' (manu kake) stands at a cardinal point in the text:

The first glyph lines, a1-a2, can be regarded as the 'tail months' of the previous year. Yet, Hora iti is clearly connected with Hora nui, not only by their names but also by the fact that the 1st henua period is beginning with the last 3 glyphs in line a2.