Documention of the Niburu's orbit being a shar (3600 years)


Christine Proust, "Numerical and Metrological Graphemes: From Cuneiform to Transliteration," Cuneiform Digital Library Journal, 2009, ISSN 1540-8779

The Sumerian King List By Thorkild Jacobsen

Antediluvian (before the flood) rulers

These were measured in Sumerian numerical units known as sars (shars) (units of 3,600), ners (units of 600), and sosses (units of 60)

"After the kingship descended from heaven, the kingship was in Eridug.
In Eridug, Alulim became king; he ruled for 28800 years (8 sars)."
Alalngar: 10 sars (36,000 years)
"Then Eridug fell and the kingship was taken to Bad-tibira."
En-men-lu-ana: 12 sars (43,200 years)
En-men-gal-ana: 8 sars (28,800 years)
Dumuzid, the Shepherd: 10 sars (36,000 years)
"Then Bad-tibira fell and the kingship was taken to Larag."
En-sipad-zid-ana: 8 sars (28,800 years)
"Then Larag fell and the kingship was taken to Zimbir."
En-men-dur-ana 5 sars and 5 ners (21,000 years)
"Then Zimbir fell and the kingship was taken to Shuruppag."
Ubara-Tutu 5 sars and 1 ner (18,600 years)
"Then the flood swept over."
In Eridug, Alulim or Adapa became king; he ruled for 8 shari.
Alaljar ruled for 10 shari in Eridug.
Then Eridug fell and the kingship was taken to Bad-tibira.
In Bad-tibira, En-men-lu-ana ruled for 12 shari.
En-men-gal-ana ruled for 8 shari in Bad-tibira.
Dumuzid, the shepherd, ruled for 10 shari in Bad-tibira.

Then Bad-tibira fell and the kingship was taken to Larag.
In Larag, En-sipad-zid-ana ruled for 8 shari.

Then Larag fell and the kingship was taken to Zimbir.
In Zimbir, En-men-dur-ana became king; he ruled for 5 shari 5 Ner.

Then Zimbir fell and the kingship was taken to Curuppag.
In Curuppag, Ubara-Tutu became king; he ruled for 5 shari 1 Ner.

Then the flood swept over.

To translate :
One Gesh (Sumerian) = One Shush (Akkadian) = 60 (days)
One Geshu (Sumerian) = One Ner (Akkadian) = 600 (days)
One Shar (Sumerian) = One Shar (Akkadian) = 3600 (days)
Sumerians used a sexagecimal system.
The translators have translated 8 Shar = 8*3600 = 28800 years.
Why One shar should be 3600 years ? why not 3600 hours or 3600 minutes or 3600 seconds or anything else?
I have searched and tried many possibilities and the best one is in days.
With 8 Shar = 28800 days = 28800/365 years = 79 years. That's a normal length for a lifetime.
Two Babylonian (Akkadian) Tales of Beginnings
"Cuneiform Parallels to the Old Testament " by R.W. Rogers, 1912
Ancient Near Eastern Texts Relating to the Old Testament by James Pritchard