Katabibazon

Definition

Katabibazon is the K-spelling Greek-romanization of καταβιβάζων, the technical name for the descending lunar node — the point on the ecliptic where the Moon's orbit crosses from north to south. The corresponding Latin form 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. The K-spelling preserves the Greek κ directly; the alternative Latinised C-spelling Catabibazon is the form most often encountered in medieval Latin and early-modern English literature.

In Tradition

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

In Practice

Astrologers locate Katabibazon 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: Katabibazon 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 Greek καταβιβάζων ('descender') is preserved in the Hellenistic tradition and 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 the Latin Cauda Draconis with formal definition as one of the two intersections of the Moon's circle with the Sun's circle.

Etymology

Origin: Greek. Meaning: From καταβιβάζων (katabibazōn), 'the one causing to descend' or 'descender' — the lunar orbit's descending crossing of the ecliptic..

Further Reading

• Abu Ma'shar, Great Introduction to Astrology
• Guido Bonatti, Liber Astronomiae
• Al-Biruni, Kitāb al-Tafhīm