Die KEHRE (1930), der BEGINN der SCHWARZEN HEFTE und das FEHLEN des ERSTEN

In the second half of year 1930 and first half of year 1931 
Jupiter and Saturn had about 180° of ang. distance one from the other. 
Then this angular distance began to decrease, (red curve) till to the 
triple Jupiter-Saturn conjunction 1940-1941 in the constell. of Aries.

Auf Seite 531 von GA 94 der Herausgeber Peter Trawny schreibt:
"Es fehlt [zwischen den gesamten 34+2 Schwarzen Hefte] ein Heft, naemlich die 'Winke x Ueberlegungen (I)', die um 1930 verfasst worden sein muessen. Sein Verbleib ist ungeklaert."

cioè in italiano,
A pag. 531 del volume GA 94 scrive il curatore, P. Trawny: "Manca [tra i complessivi 34+2 Quaderni neri] un quaderno, cioè 'Cenni e Riflessioni (I)', che dovrebbe essere stato redatto all' incirca nel 1930. Non è chiaro dove sia finito."

The idea that today came in my mind is that Heidegger could have begun to write his little black notebooks (quaderni neri) just when _a turn_ took place and the planet Jupiter began to approach Saturn again, reducing progressively their angular distance. As can easily be seen in the above diagrams (red curve), in the second half of the year 1930 Jupiter and Saturn were oneanother on opposite sides of the Earth (about 180° of ang. separation), so that when the one was rising the other was setting. From now on began the approaching process, which would have brought in about ten years to the triple Jupiter-Saturn conjunction 1940-1941 in Aries. 

On the other hand, As I've remembered elsewhere in this blog, 1930 is also the year  indicated by Heidegger self as the initial one for the use by him of the cryptic term Turn or KEHRE, when (wikipedia.de): "Er wandte sich von seinem fundamentalontologischen Denken ab und einem seinsgeschichtlichen Ansatz zu. Es ging ihm nach der Kehre nicht mehr um den Sinn von Sein oder dessen transzendentalen Auslegungshorizont (die Zeit), sondern er begoz die Rede vom Sein als solchem darauf, wie das Sein sich von sich selbst her sowohl entbirgt als auch verbirgt."

In other words - concluding - my opinion is that the occurring in 1930-31 of the said Jupiter-Saturn planetary turn triggered not only the change in Heidegger's thinking (Umdenken in Denkweg MHs) known as Turn or Kehre, but also the beginning of the writing of his black notebooks/Schwarze Hefte.

It is very curious that now is apparently missing just the first of these notebooks ("Winke x Ueberlegungen ( I )", written very probably between the summer 1930 and October 1931), the one where perhaps Heidegger stated and showed more clearly his emotions and reactions to the signs/Winke of the comings gods of the time, der kommenden Goetter der Zeit. Maybe it will reappear - let's hope - at the end of the GesamtAusgabe publishing.