2. Diadem, α Coma Berenicis, is rising heliacally in October 7 - 7 months beyond the 'Bucket Rope' - and possibly marks where 'the Earth Turtle' is culminating at midnight (136 nights beyond Gb8-30):

73 135
Gb6-14 Gb6-15 Gb6-16 208 Ga5-25 (136) Ga5-26
  Kerb (354.6) 365¼ - 354.6 + 199.5 = 210.15 Apami-Atsa (199.5), Diadem (199.9) σ Virginis (201.4)
March 10 11 12 (71) 208 October 7 (280) 8

Wikipedia:

"Berenice II (267 or 266 BC – 221 BC) was the daughter of Magas of Cyrene and Queen Apama II, and the wife of Ptolemy III Euergetes, the third ruler of the Ptolemaic dynasty of Egypt. In about 249 BC, she was married to Demetrius the Fair, a Macedonian prince, soon after her father [had] died. However after coming to Cyrene he became the lover of her mother Apama. In a dramatic event, she had him killed in Apama's bedroom, but Apama lived on afterwards. She had no children with Demetrius. Afterwards she married Ptolemy III."

It is hardly a coincidence that the mother of Berenice was Apama. The star Apami-Atsa (θ Virginis) is rising only hours before Diadem. The lover of Apama, Demetrius the Fair, was killed in her 'bedroom' - perhaps he played the role of Kuukuu. Demeter was the goddess of earth.

"In ancient Greek religion and myth, Demeter ... is the goddess of the harvest, who presided over grains and the fertility of the earth. Her cult titles include Sito (σίτος: wheat) as the giver of food or corn/grain and Thesmophoros (θεσμός, thesmos: divine order, unwritten law) as a mark of the civilized existence of agricultural society.

Though Demeter is often described simply as the goddess of the harvest, she presided also over the sanctity of marriage, the sacred law, and the cycle of life and death. She and her daughter Persephone were the central figures of the Eleusinian Mysteries that predated the Olympian pantheon. In the Linear B Mycenean Greek tablets of circa 1400-1200 BC found at Pylos, the 'two mistresses and the king' are identified with Demeter, Persephone and Poseidon. Her Roman equivalent is Ceres." (Wikipedia)

Poseidon was the god of the sea. Perhaps he can be identified with Minelauva (δ Virginis) because this star was named Āpa. The 'Waters' should refer to the back side of the year, where Gazelle / Goat / Stag rules:

... The medieval names Auva, Al Awwa, and Minelauva are from the Arabic,  meaning 'barking (dog)'. This star, along with β Vir (Zavijava), γ Vir (Porrima), η Vir (Zaniah) and ε Vir (Vindemiatrix), were Al Awwā, the Barker ... On Euphrates it was Lu Lim, the Gazelle, Goat, or Stag, - or perhaps King; and, with ε, probably Mas-tab-ba, another of the seven pairs of Twin-stars of that country. The Hindus called it Āpa, or Āpas, the Waters; and the Chinese, Tsze Seang, the Second Minister of State ...

Ga5-19 (130) Ga5-20 Ga5-21 (*196) Ga5-22 Ga5-23
Mimosa (193.9)   ψ Virginis (195.5), Alioth (195.8), Minelauva (196.1), Cor Caroli (196.3)   δ Muscae (197.5)
October 1 (274) 2 3 4 13h = 197.8

The Turtle (honu) glyphs are, it seems, related to the 'sea', personified by Poseidon. His weapon was the trident which might explain the use of the letter ψ for the star rising half a day earlier than Āpa. Day 276 has 3 'teeth' (tri dents) - a day of Venus, 3 * 92.

In this gold coin issued by Ptolemy IV is a picture of his father Ptolemy III Euergetes ('Benefactor') and we can see a kind of trident at the back side of his head:

We should add β and γ to our star lists:

γ 12h 26m 56.33s 12h 26.939m 189.0
Diadem 13h 09m 59.55s 13h 09.993m 199.9
β 13h 11m 52.92s 13h 11.882m 200.4

13th hour:

  ο Virginis 4.12 08° 44′ N 12h 02m 183.1 591.1
Alchita α Corvi 4.02 24° 27′ S 12h 06m 184.1 592.1
Minkar ε Corvi 3.02 22° 20′ S 12h 08m 184.7 592.7
Pálida δ Crucis 2.79 58° 45′ S 12h 12m 185.6 593.6
Megrez δ Ursa Majoris 3.32 57° 19′ N 12h 13m 185.9 593.9
Gienah γ Corvi −0.94 22° 37′ S 12h 14m 186.1 594.1
  ε Muscae 4.06 67° 58′ S 12h 14m 186.2 594.2
Zaniah η Virginis 3.89 00° 40′ S 12h 16m 186.8 594.8
Chang Sha ζ Corvi 5.20 22° 13′ S 12h 18m 187.3 595.3
Intrometida ε Crucis 3.59 60° 24′ S 12h 23m 188.4 596.4
Acrux α Crucis 1.40 62° 49′ S 12h 23m 188.5 596.5
  γ Com. Berenicis 4.35 28° 16′ N 12h 25m 189.0 597.0
Algorab δ Corvi 2.94 16° 14′ S 12h 27m 189.5 597.5
Gacrux γ Crucis 1.59 57° 07′ S 12h 28m 189.7 597.7
  γ Muscae 3.84 72° 08′ S 12h 29m 190.0 598.0
Avis Satyra η Corvi 4.30 16° 12′ S 12h 30m 190.3 598.3
Asterion β Canum Venaticorum 4.24 41° 38′ N 12h 31m 190.5 598.5
Kraz β Corvi 2.65 23° 07′ S 12h 32m 190.7 598.7
  α Muscae 2.69 69° 08′ S 12h 34m 191.2 599.2
  χ Virginis 4.66 07° 60′ S 12h 36m 191.7 599.7
  ρ Virginis 4.88 10° 14′ N 12h 39m 192.4 600.4
Porrima γ Virginis 2.74 01° 11′ S 12h 39m 192.5 600.5
  β Muscae 3.04 68° 06′ S 12h 43m 193.5 601.5
Mimosa β Crucis 1.25 59° 41′ S 12h 44m 193.9 601.9
  ψ Virginis 4.77 09° 32′ S 12h 51m 195.5 603.5
Alioth ε Ursa Majoris 1.76 56° 14′ N 12h 52m 195.8 603.8
Minelauva δ Virginis 3.39 03° 40′ N 12h 53m 196.1 604.1
Cor Caroli α Canum Venaticorum 2.89 38° 35′ N 12h 54m 196.3 604.3
  δ Muscae 3.61 71° 33′ S 12h 59m 197.5 605.5

14th hour:

Vindemiatrix ε Virginis 2.85 11° 14′ N 13h 00m 197.8 605.8

Apami-Atsa

θ Virginis 4.38 05° 32′ S 13h 07m 199.5 607.5

Diadem

α Com. Berenicis 4.32 17° 48′ N 13h 08m 199.9 607.9

Al Dafīrah

β Com. Berenicis 4.23 27° 53′ N 13h 10m 200.4 608.4
  σ Virginis 4.78 05° 28′ N 13h 14m 201.4 609.4
Mizar ζ Ursae Majoris   55° 11′ N 13h 22m 203.4 611.4
Spica α Virginis 0.98 10° 54′ S 13h 23m 203.7 611.7
Alcor 80 Ursae Majoris   55° 15′ N 13h 23m
Heze ζ Virginis 3.38 00° 20′ S 13h 32m 206.0 614.0
Benetnash η Ursae Majoris   49° 34′ N 13h 46m 209.5 617.5