Although we now leave the ragi part of the glyph dictionary in order to continue with moa, there are a few thoughts left over which need to be taken care of.

Allen has an introductory part in his book about the star names and what they mean, in which he gives a short description of the Solar Zodiac, the Lunar Mansions and the Constellations.

"... there now seems to be general agreement of opinion that it [the zodiac] originated, mainly as we have it, in archaic Euphratean astronomy, possibly with only the six alternate signs, Taurus, Cancer, Virgo, Scorpio, Capricornus, and Pisces, and later divided because of the annual occurrence of twelve full moons in successive parts of it ..."

The twelve full moons were already there at the beginning, so I think a better explanation is how the gradually increasing pressure from the precession of the equinoxes forced a redrawing of the zodiac. Such a redrawing must have been painful. Presumably they kept the 6 original signs and added 6 new ones in the reform.

The very symmetric hexagon of the sun, with his 6 'houses', could not be erased. On Easter Island, I guess, there could still have been a zodiac with 6 signs - with each sign divided in a 'male' followed by a 'female' half.

The 10 months of the sun was probably a much older pattern, and not in conflict with a 6-part zodiac:

"... modern scholars think that it was known to the Akkadians as Innum, and as Pidnu-sha-Shame, the Furrow of Heaven, ploughed by the heavenly Directing Bull, our Taurus, which from about 3880 to about 1730 B.C. was first of the twelve..."

The two 'horns' of the ragi glyph type may very well have originated from the picture of a bull. The 'finished' old bull (Te Pau) is followed by a newborn strong 'year' (Te Pou).

The distance between Taurus and Sirius is not far in time-space.

Furthermore, the constellation Taurus, as drawn in the picture, has a shape reminiscent of an upside down henua ora:

In Ga7-15 the little balls at right could represent the 6 stars at the top (above Aldebaran) of the Taurus constellation as observed from Easter Island.

Aldebaran is important:

"... it marked the 5th ecliptic asterism Pidnu-sha-Shame, the Furrow of Heaven, perhaps representing the whole zodiac, and analogous to the Hebrew and Arabic Padan and Fadan, the Furrow.

So that, before the Ram had taken the Bull's place as Leader of the Signs, Aldebaran was Ku, I-ku, or I-ku-u, the Leading Star of Stars.

Still more anciently it was the Akkadian Gis-da, also rendered the 'Furrow of Heaven'; and Dil-gan, the Messenger of Light, - this, as we have seen, being applied to Hamal, Capella, Wega, and perhaps to other bright stars, as their positions changed with respect to the equinox ..."

"... The Taurids of the 20th of November radiate from a point north of, and preceding, this star. These meteors 'are slow, and fireballs occasionally appear among them'."