Abstract
A revolution of the line of nodes with respect to the fixed stars takes 6,793 days (see Chap. 17); a revolution of the line of apsides with respect to the fixed stars takes 3,233 days (see Chap. 19). The former is retrograde, the latter is direct: their opposite motions add up one to the other.
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Notes
- 1.
I have extracted these figures—slightly rounded up/down—from Meeus 1997, pp. 11–14.
- 2.
2,190 = 360 ÷ 0.1644.
- 3.
–116.07° = 2,190 × –0.0530; + 243.97° = 2,190 × + 0.1114; obviously, 116° + 244° = 360°.
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Magini, L. (2015). Composition of the Revolutions of the Lines of Nodes and of Apsides. In: Stars, Myths and Rituals in Etruscan Rome. Space and Society. Springer, Cham. https://doi.org/10.1007/978-3-319-07266-1_20
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DOI: https://doi.org/10.1007/978-3-319-07266-1_20
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