Arab		Hindu		Chinese
α Virginis (Spica)	Oct 10 (283)	α Virginis (Spica)	Oct 10 (283)	α Virginis (Spica)	Oct 10 (283)
ι (Syrma), κ, φ Virginis	Oct 23 (296)	α Bootis (Arcturus)	Oct 22 (295)	κ Virginis	Oct 22 (295)
α (Zuben Elgenubi), β Librae (Zuben Elschemali)	Oct 31 (304)	α, β, γ and ι Librae	Oct 31 (304)	α Librae (Zuben Elgenubi)	Oct 31 (304)
	Nov 7 (311)
β (Acrab), δ (Dschubba), π Scorpii (Vrischika)	Nov 17 (321)	β, δ, and π Scorpii	Nov 17 (321)	π Scorpii (Vrischika)	Nov 17 (321)
α Scorpii (Antares)	Nov 25 (329)	α, σ, and τ Scorpii	Nov 25 (329)	σ Scorpii	Nov 23 (327)
Novem (9) in November 25 implies 92 * 5 = 460 = 10 * (329- 283).

Instead they evidently used σ Scorpii.

Egyptian tusk		Phoenician shin		Greek sigma	Σ (σ, ς)
Wikipedia: "Shin (also spelled Šin (šīn) or Sheen) literally means 'teeth, 'press', and 'sharp' ..." The Mayan 'grasping hand' (Chikin) in the west was also called 'the biting or eating of the Sun': ... But in the final confirmation, we have the direct evidence of the signs for East and West. For the East we have the glyph Ahau-Kin, the Lord Sun, the Lord of Day; for the West we have Manik-Kin, exactly corresponding to the term Chikin, the biting or eating of the Sun, seizing it in the mouth ...

The Greeks had a special variant of lower case sigma at the end of the words, ς. But in the star charts the normal variant (σ) is used.

We have here an opportunity to see if the creator of the C text may have used the Chinese system instead of the Arab structure (whereas the Hindu system could in principle also have relied on σ Scorpii as the point of change).

1	Horn	α Virginis (Spica)	Crocodile	(202.7)	Oct 10 (283)	283 = 265 + 18
2	Neck	κ Virginis	Dragon	(214.8)	Oct 22 (295)	295 = 283 + 12
3	Root	α Librae (Zuben Elgenubi)	Badger	(224.2)	Oct 31 (304)	304 = 295 + 9
4	Room	π Scorpii (Vrischika)	Hare	(241.3)	Nov 17 (321)	321 = 304 + 17
5	Heart	σ Scorpii	Fox	(247.0)	Nov 23 (327)	327 = 321 + 6

Possibly σ Scorpii served as a 'birth mark' because 247.0 = 236 (= 6 * 29½) + 11 ('one more'), meaning a new beginning. Perhaps heliacal November 23 was a time of 'birth' and November 25 a time of 'death'. But Antares was named Ana-mua, not Ana-muri.

Between σ and Antares there were 5 days, which - together with the appellation Ana-mua - could mean Antares stood at the beginning and σ at the end.

Heart ought to mean 'central'.

Already with mago in Cb9-18 we can perceive the Scorpion, because from the G tablet we know how a variant of this glyph type probably referred to Antares. There were (I think) no scorpions on Easter Island and instead they may have used a shark showing his teeth: