Once again. In C a transition of the mode of reading from the perspective at the time of rongorongo to that of Roman times could have come when Alhena was close to the Full Moon. Al Hena (the brand) sounds a bit like Polynesian henua (land) - i.e. what could be expected south of the equator when Sirius was at the Full Moon in December 30 and when 4 days later the Sun was at Nunki (*288): ... This [σ] has been identified with Nunki of the Euphratean Tablet of the Thirty Stars, the Star of the Proclamation of the Sea, this Sea being the quarter occupied by Aquarius, Capricornus, Delphinus, Pisces, and Pisces Australis. It is the same space in the sky that Aratos designated as Water ...
From Ca10-29 (284) to *Ca14-21 (384) there were 100 glyphs (nights). Glyph 285 is Ca11-1 (possibly alluding to April 21): ... *384 (April 9) - *326 (February 10) = 58 = 2 * 29. April 9 (464) - 58 = 406 = 365 + 41 (February 10). At the time of rongorongo the heliacal stars at the Julian 3-25 for spring equinox were in day 84 (March 25) + 27 = 111 (April 21, *31) ...
Here I have put heliacal Alrisha together with nakshatra Thuban. But since 182 < 365.25 / 2 < 183 my precision for locating nakshatra stars cannot be exact. Neither was locating the position of a star close to the Full Moon an exact science. From nakshatra Ukdah in Ca12-12 (328) to heliacal Polaris in *Ca14-29 (392) there were 64 days. At the time of rongorongo the Sun was at Polaris in April 16 (472) with Ukdah at the Full Moon in February 12 (408). Which can be compared with the same numbers in G:
Heliacal Polaris was at the last glyph on side a of the C tablet and on the G tablet we could perceive Hyadum II as the last heliacal star on side b:
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