Historical Nilotic Star Clock & Source
Dendera Circular Zodiac & Hellenistic Graeco-Egyptian (EAT III Table 5; Hephaestio 1.1; Liber Hermetis 25)
tpy-ꜥ ꜥrt
« Fore-part of the Uraeus / Sacred Serpent » Dendera Circular Zodiac & Hellenistic Graeco-Egyptian (EAT III Table 5; Hephaestio 1.1; Liber Hermetis 25)
Neugebauer & Parker (1969) EAT III Table 5 p. 70; Hephaestio 1.1; von Bomhard (2008)
In Hephaestio: Tchento (Τχεντώ). Opening of the serpent asterisms.
Modern Calculation — Artifact-Inspired
Hellenistic 10° Ecliptic Arc — Scorpio (210° – 220°)
Mathematical Alexandrian model of the 360° tropical ecliptic. Not an excavated Pharaonic object.
Mars (♂)
Chaldean Order Cycle: Step 1 of 7 in the classical descending planetary sphere sequence.
Decan Specifications
tpy-ꜥ ꜥrt Decan 22 marks the inception of Scorpio, encompassing 210° to 220° of tropical solar longitude. Ruled by Mars in the Chaldean order, this decan unleashes concentrated emotional intensity, sharp discernment, and an unyielding willpower focused on deep transformation.
Historical Context
In ancient Egypt, decans originated as a system of 36 asterisms (baktiu) observed rising heliacally before dawn across 10-day intervals (decades) to measure the nocturnal hours and agricultural seasons. In the documented Hellenistic-Egyptian tradition (Dendera circular planisphere, Hephaestio of Thebes 1.1, and Liber Hermetis 25), this sector is identified as tpy-ꜥ ꜥrt (“Fore-part of the Uraeus / Crown”).
In Hephaestio: Tchento (Τχεντώ). Scholarly documentation: Neugebauer & Parker (1969) EAT III Table 5 p. 70; Hephaestio 1.1; von Bomhard (2008).
Zodiacal Association
Hellenistic-Egyptian Zodiac Context: Within the Hellenistic-Egyptian Zodiac tradition, this decan combines the fixed water element of Scorpio with the primordial rulership of Mars. Ancient astrologers identified this placement with intense courage, strategic focus, and the capacity to confront hidden truths.
Chaldean Ruler: Mars
Mars acts as a potent engine of determination and instinctual power in this decan. Unlike its outward expression in Aries, Mars in Scorpio channels force inwardly, granting penetrating insight, resilience, and decisive action under pressure.
Modern Interpretation
Modern Popular Interpretation:
According to Modern Popular Interpretation, Decan 22 imbues individuals with fierce loyalty, intuitive depth, and transformative strength. It is seen as an engine of personal regeneration, capable of overcoming adversity through sheer resolve.
Contemporary psychological astrology views this decan as an archetype of emotional mastery and deep introspection. These personality traits reflect 20th-century characterological models rather than ancient Egyptian predictive astrology.
Decan 22: tpy-ꜥ ꜥrt Epigraphic Register
Documented philological transliterations, Hellenistic Greek transcriptions, Ptolemaic zodiac sector bounds, and Chaldean planetary governance.
Ancient Nilotic Epigraphy
- Transliteration
tpy-ꜥ ꜥrt- Documented Meaning
- « Fore-part of the Uraeus / Sacred Serpent »
- Stellar Asterism Family
- Aret (The Sacred Divine Uraeus)
- Primary Epigraphic List
- Dendera Circular Zodiac & Hellenistic Graeco-Egyptian (EAT III Table 5; Hephaestio 1.1; Liber Hermetis 25)
Hellenistic Alexandria Synthesis
- Zodiac Sign & Face
- 1st (0°–10°) Scorpio
- Ecliptic Longitude Arc
210.00° – 220.00°- Hellenistic Sector Name
- Scorpio 0°–10° (210°–220° ecliptic longitude)
Chaldean Planetary Governor
- Planetary Governor
- ♂ Mars
- Planetary Speed Order
- Saturn → Jupiter → Mars → Sun → Venus → Mercury → Moon
- Material Basis
- Carved Painted Limestone Plaster
- Representative Plate
- Astronomical Vault in the Tomb of Seti I (KV17, Valley of the Kings, 19th Dynasty)
1-Click Citation Export
Standard formatted academic citations for research publications, peer-reviewed bibliographies, and scholarly reference.
5-Tier Epistemological Truth Standard
Explore the primary artifacts, peer-reviewed monographs, astronomical ephemerides, and living tradition ethnography behind this page.
Calculated Astronomical Fact
Continuous analytical VSOP87 solar ecliptic longitude partitioning the 360° tropical zodiac into thirty-six 10° decanal arcs, resolved to < 0.01° precision.
Primary Historical Evidence
- Asyut Necropolis coffin lid diagonal star tables (c. 2100 BCE, Middle Kingdom)
- Tomb of Senenmut TT353 astronomical ceiling (c. 1473 BCE, 18th Dynasty)
- Dendera Temple of Hathor circular zodiac bas-relief (Louvre D 38, c. 50 BCE)
Scholarly Academic Interpretation
Neugebauer & Parker (1960–1969) Egyptian Astronomical Texts (Vols. I–III) and von Bomhard (2008) Naos of the Decades epigraphic analysis.
Living Indigenous Tradition
Historical Archival Tradition: Temple liturgy ceased in antiquity; reconstructed from primary documentary texts.Historical archival tradition: Temple liturgical ceremonies ceased in late antiquity; reconstructed from primary hieroglyphic star clocks and Hellenistic papyri.
Modern OmniZodiac Interpretation
Chaldean planetary ruler dignities, deity archetypes, and contemplative decanal themes; separated from ancient funerary omenology.
Explore Decan 22 Connections
Discover which of the 36 sacred Egyptian decans governs your precise birth date and planetary degree.
Pharaonic 36-Decan Star Map
Deepen your relationship with Egyptian decanal astronomy, Chaldean rulers, and temple ceilings.
Calculate Your Egyptian Decan
Identify your natal decan netjer, star coordinate degree, and seasonal protection.
Scholarly Variant Readings & Philological Commentary
In Hephaestio: Tchento (Τχεντώ). Opening of the serpent asterisms.