Decan Number 15: bkꜣty - Leo
✦ Egyptian 36 Decans ✦ 3rd (20°–30°) Decan of Leo

Decan Number 15: bkꜣty (3rd (20°–30°) Decan of Leo) — OmniZodiac

« The Pregnant Stars / The Two Feathers »

Decan Number 15: bkꜣty

Spanning ecliptic degrees 140° to 150° of Leo, governed by the Chaldean planetary resonance of Mars.

✦ Documented Epigraphic Source ✦ EAT-III-TAB5-#15

Historical Nilotic Star Clock & Source

Dendera Circular Zodiac & Hellenistic Graeco-Egyptian (EAT III Table 5; Hephaestio 1.1; Liber Hermetis 25)

Authentic Egyptian Astronomical Artifact — Decan Number 15 (bkꜣty)
✦ Painted Plaster with Mineral Pigment Senenmut Astronomical Ceiling South Panel (Metropolitan Museum of Art / TT353)
DECAN NUMBER #15
Transliterated Egyptian Name

bkꜣty

« The Pregnant Stars / The Two Feathers »
Primary Epigraphic Source

Dendera Circular Zodiac & Hellenistic Graeco-Egyptian (EAT III Table 5; Hephaestio 1.1; Liber Hermetis 25)

Egyptological Citation

Neugebauer & Parker (1969) EAT III Table 5 p. 66; Hephaestio 1.1; Gundel (1936)

Concordance & Greek Forms

In Hephaestio: Ouphtē (Οὐφτή). Liber Hermetis: Bekan. Concludes the Leo decanic sector.

✦
Nilotic Star-Clock Heritage: In the indigenous Egyptian civil calendar (c. 2100–1473 BCE), decans (*baktiu*) measured nocturnal hours through the heliacal rising of designated star groups across 10-day decades (*decans*), independent of the 360° Babylonian-Hellenistic solar wheel.
✦ MODERN VISUALIZATION — ARTIFACT-INSPIRED ✦ VSOP87 / TROPICAL 360°

Modern Calculation — Artifact-Inspired

Hellenistic 10° Ecliptic Arc — Leo (140° – 150°)

ℹ

Mathematical Alexandrian model of the 360° tropical ecliptic. Not an excavated Pharaonic object.

Leo — Ecliptic Arc (30°) 140.00° – 150.00° Longitude
1st 2nd 3rd Leo 30° ARC
Active: 3rd (20°–30°) (140°–150°)
Neighboring Sign Sectors (10° each)
♂ Mars
Chaldean Planetary Governor

Mars (♂)

Chaldean Order Cycle: Step 1 of 7 in the classical descending planetary sphere sequence.

Decan Specifications

Decan Number 15 / 36
Transliterated Egyptian Name bkꜣty
Documented Meaning & Translation « The Pregnant Stars / The Two Feathers »
Zodiac Sign Leo →
Decan Position 3rd (20°–30°) (140° – 150°)
Chaldean Planetary Governor Mars (♂)
Asterism Family Bekaty (The Fecund Stars)
Material Basis Painted Plaster with Mineral Pigment

Decan 15 covers 140° to 150° of the ecliptic (20°–30° Leo), closing the sign of Leo in the decanal cycle. This decan merges creative solar warmth with fiery martial drive and courage.

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 bkꜣty (“The Pregnant Stars / The Two Feathers”).

In Hephaestio: Ouphtē (Οὐφτή). Liber Hermetis: Bekan. Concludes Leo. Scholarly documentation: Neugebauer & Parker (1969) EAT III Table 5 p. 66; Hephaestio 1.1; Gundel (1936).

Zodiacal Association

Under the Hellenistic-Egyptian Zodiac Context, 20°–30° Leo bridges fixed fire with upcoming mutable earth (Virgo), combining dynamic ambition with energetic determination.

Chaldean Ruler: Mars

Mars governs this decan in the Chaldean sequence, endowing Leo’s creative core with fierce determination, physical stamina, and competitive passion.

Modern Interpretation

Modern Popular Interpretation paints individuals with this decan placement as bold, courageous, and fiercely protective champions. They are seen as individuals who fight passionately for their convictions and projects.

Astrologers note that this character interpretation is a Modern Popular Interpretation model, completely separate from ancient Egyptian star-clock functions.

✦ Egyptian 36-Decan Tradition ✦

5-Tier Epistemological Truth Standard

Explore the primary artifacts, peer-reviewed monographs, astronomical ephemerides, and living tradition ethnography behind this page.

Methodology Version: 2026.W05 Last Verified: September 2026
Tier A

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.

Tier B

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)
Tier C

Scholarly Academic Interpretation

Neugebauer & Parker (1960–1969) Egyptian Astronomical Texts (Vols. I–III) and von Bomhard (2008) Naos of the Decades epigraphic analysis.

Tier D

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.

Tier E

Modern OmniZodiac Interpretation

Chaldean planetary ruler dignities, deity archetypes, and contemplative decanal themes; separated from ancient funerary omenology.

✦ CELESTIAL ONWARD PATH ✦

Pharaonic 36-Decan Star Map

Deepen your relationship with Egyptian decanal astronomy, Chaldean rulers, and temple ceilings.

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