Catabibazon

greek: καταβιβάζων (katabibazōn) · latin: Cauda Draconis · arabic: ذنب (dhanab); dhanab al-jawzahr · sanskrit: केतु (ketu) · persian: jawzahr dunb

Definition

Catabibazon is the Latinised C-spelling of the Greek καταβιβάζων (Katabibazon), the technical name for the descending lunar node — the point on the ecliptic where the Moon's orbit crosses from north to south as it descends toward the southern celestial hemisphere. The corresponding Latin term in the medieval reception is Cauda Draconis ('Tail of the Dragon'); the Arabic is dhanab (with dhanab al-jawzahr in the Persian-mediated form), and the Sanskrit is Ketu.

In Tradition

Across Hellenistic, Arabic-Persian, and medieval Latin tradition Catabibazon (the descending node) is read as the malefic counterpart to the ascending node, opposite Anabibazon / Caput Draconis / raʾs / Rāhu. Abu Ma'shar classifies its elemental nature as watery cold-wet, sharing qualities with Venus and the Moon but in their destructive rather than fertile aspect; the Arabic and medieval Latin tradition attributes a Saturn-and-Mars by-natural-signification character that diminishes whatever it conjoins.

In Practice

Astrologers locate Catabibazon directly opposite Anabibazon — always exactly 180° away on the ecliptic — and watch its sign placement, house placement, and conjunctions. Bonatti gives the canonical Arabic-Latin exaltation degree at 3° Sagittarius (exactly opposite the Caput exaltation at 3° Gemini). The diminisher reading governs delineation: Catabibazon conjoining a benefic compromises the benefic's productivity, while conjoining a malefic intensifies the malefic's destructive register. In eclipse computation, the descending node functions identically to the ascending node — a luminary within roughly twelve to eighteen degrees of either node marks an eclipse condition. Modern Western practice retains the doctrine under the name 'South Node.'

Historical Origin

The Latinised 'Catabibazon' renders Greek καταβιβάζων ('descender'), carried into Arabic astronomy via the Sanskrit-Pahlavi transmission chain (Sanskrit ketu → Pahlavi jawzahr-dunb → Arabic dhanab al-jawzahr → medieval Latin cauda draconis). Abu Ma'shar's *Great Introduction* Part III §§1.7b-1.8 (9th c.) classifies the Tail (dhanab) within his elemental qualities scheme; Bonatti's *Liber Astronomiae* (13th c.) preserves the Greek katabibazon alongside Cauda Draconis. The C-spelling is standard in medieval Latin and in Lilly's *Christian Astrology* (1647).

Etymology

Origin: Greek. Meaning: From καταβιβάζων (katabibazōn), 'the one causing to descend' or 'descender' — the lunar orbit's descending crossing of the ecliptic. The Latinised spelling Catabibazon arose in the medieval Latin transmission as the standard rendering of Greek κ as c..

Further Reading