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Stars, Myths and Rituals in Etruscan Rome pp 95–98Cite as

The Revolution of the Line of Nodes and the Feast Days of October Equus, Fordicidia and Parilia

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Abstract

The lunar nodes are the points where the Moon’s apparent orbit, which is inclined by 5.1° with respect to the ecliptic, intersects the Sun’s apparent orbit.

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Notes

  1. 1.

    0.0530 = 360 ÷ 6.793.

  2. 2.

    Polybius 12.4b; Plutarch, Quaestiones Romanae, 97; Festus, p. 190-1L1; Paulus Diaconus, p. 246L1.

  3. 3.

    Counting inclusively, we have 179 days before and 178 days after 15 October: 179 days = 15 days in April + 149 in May, June, July, August and September + 15 in October; 178 days = 17 days in October + 146 in November, December, January, February and March + 15 in April.

  4. 4.

    173 days = 9 days in April + 149 in May, June, July, August and September + 15 in October.

  5. 5.

    Ovid, Fasti, 4.731-4: I, pete virginea, populus, suffimen ab ara: / Vesta dabit, Vestae munere purus eris. / Sanguis equi suffimen erit vitulique favilla, / tertia res durae culmen inane fabae.

  6. 6.

    Ovid, Fasti, 4.671-2: […] fecundior annus / provenit, et fructum terra pecusque ferunt.

  7. 7.

    Paulus Diaconus, p. 246L1: ob frugum eventum.

  8. 8.

    For the Head of the Dragon, please see: Alchabitius, Libellus isagogigus 1512, fo. 45r; for the Tail of the Dragon, see: Ex libris Mysteriorum Apomasaris, in CCAG XII, p. 102. Both of these texts may be found in Bezza, 1995, vol. 1, p. 412.

  9. 9.

    Pliny, Naturalis Historia, 28.147: erodit, emarginat ulcera.

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  1. Societa’ Italiana di Archeoastronomia, Fiumicino, Italy

    Leonardo Magini

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Correspondence to Leonardo Magini .

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Magini, L. (2015). The Revolution of the Line of Nodes and the Feast Days of October Equus, Fordicidia and Parilia . In: Stars, Myths and Rituals in Etruscan Rome. Space and Society. Springer, Cham. https://doi.org/10.1007/978-3-319-07266-1_17

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