An affirmation of the 'straight time of midsummer' is found in the 17th period of the Small Santiago year, where the 'sun-cat' has a very straight back ('central pillar'), the only one of 31 'cats' looking like that:

The straight back could also be a sign of henua, a sign of the period of very much light. It looks as if the rongorongo writers marked midsummer with straightness, midwinter with bending. In midwinter, with very little light, the bending is chosen as an opposite to straightness. So also in all other periods of much darkness. It reminds me of the marked bending in Saturday (Pb10-55).

 

There (in Pb10-55) we have three downward sloping marks. In Kb1-10 we have three upward going marks. I guess that stripes inside henua means darkness (cfr also Kb4-8). Saturday means darkness, the day of the king of po. Though all planets (except sun) should be viewed in darkness.

 

Four external marks of light in Kb1-9 and three internal marks for darkness in Kb1-11, a pattern that agrees well with Venus and Saturn, the 'planetifications' of lightness and darkness - cfr Pb10-55.