Mean or true: I played the lunar node and Lilith from their motion, and the true node turns back 53 times in a year while the mean one never does

Over the year after my birth the true lunar node reversed 53 times and osculating Lilith 23 times; mean Lilith never turned. Astrologers argue whether a chart should use the mean or the true lunar node, the mean or the osculating Lilith, and the choice is usually shown as two positions a few degrees apart. I made the difference audible. By the law of my earlier paper (IP-A21), a point's pitch is its mean cycle raised by octaves into hearing, times its true speed over its mean speed, so a point that halts and reverses glides through silence. Over the year from 8 March 1998, 10:10 in Sofia (08:10 UTC), the true node ran backward at up to 4.79 times its mean speed and forward at up to 0.56 times. Mean Lilith remained between 0.997 and 1.006 times its mean speed. Osculating Lilith swung from −31.9 to 52.9 times. A second year, from 1 January 1990, yields 53, 0 and 25 turns. The tuning-fork tradition yields the node one fixed tone; I found no audio of a node's or Lilith's motion. This record holds the paper (OCO paper IP-A27). Part of The sound of the sky: 12 papers and their sounds: 10.5281/zenodo.23986764.

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Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-11-05
DOI
https://doi.org/10.5281/zenodo.23986783
Primary Topic
Historical Astronomy and Related Studies
Type
preprint
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preprint

Mean or true: I played the lunar node and Lilith from their motion, and the true node turns back 53 times in a year while the mean one never does

Ivan Petrov Ivanov
Zenodo (CERN European Organization for Nuclear Research)
Historical Astronomy and Related Studies
preprint

Mean or true: I played the lunar node and Lilith from their motion, and the true node turns back 53 times in a year while the mean one never does

Ivan Petrov Ivanov
preprint en

Abstract

Over the year after my birth the true lunar node reversed 53 times and osculating Lilith 23 times; mean Lilith never turned. Astrologers argue whether a chart should use the mean or the true lunar node, the mean or the osculating Lilith, and the choice is usually shown as two positions a few degrees apart. I made the difference audible. By the law of my earlier paper (IP-A21), a point's pitch is its mean cycle raised by octaves into hearing, times its true speed over its mean speed, so a point that halts and reverses glides through silence. Over the year from 8 March 1998, 10:10 in Sofia (08:10 UTC), the true node ran backward at up to 4.79 times its mean speed and forward at up to 0.56 times. Mean Lilith remained between 0.997 and 1.006 times its mean speed. Osculating Lilith swung from −31.9 to 52.9 times. A second year, from 1 January 1990, yields 53, 0 and 25 turns. The tuning-fork tradition yields the node one fixed tone; I found no audio of a node's or Lilith's motion. This record holds the paper (OCO paper IP-A27). Part of The sound of the sky: 12 papers and their sounds: 10.5281/zenodo.23986764.

Zenodo (CERN European Organization for Nuclear Research)
Historical Astronomy and Related Studies
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