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4 results for "obliquity"

ZH_5_04 Verified Archaeoastronomy

ZH_5_04 — Precession of the Equinoxes: Hipparchus, Axial Wobble, and the Great Year

The precession of the equinoxes — the slow, continuous westward shift of the equinoctial points (where the ecliptic crosses the celestial equator) along the ecliptic — is one of the most consequential astronomical phenom

precession equinoxes Hipparchus axial wobble Platonic year Great Year
E_4_13 Verified Cataclysms & Chronology

E_4_13 — Milankovitch Cycles and Orbital Forcing

Milankovitch cycles are periodic variations in Earth's orbital geometry that modulate the distribution and intensity of solar radiation reaching Earth's surface, driving the glacial-interglacial cycles that have dominate

Milankovitch cycles orbital forcing eccentricity obliquity precession ice age
E_4_11 Cataclysms & Chronology

E_4_11 — The Holocene Climate Optimum and Mid-Holocene Transition

The Holocene Climate Optimum (also called the Holocene Thermal Maximum or Hypsithermal) designates a prolonged warm interval roughly spanning 9,000–5,000 years before present, during which Northern Hemisphere summer temp

Holocene Thermal Maximum Holocene Climate Optimum Green Sahara African Humid Period Milankovitch obliquity
O_5_05 Verified Earth Anomalies

O_5_05 — Ice Ages and Milankovitch Cycles: Orbital Forcing of Climate

Ice ages — periods when massive continental ice sheets expand to cover large portions of Earth's surface — are among the most dramatic climate events in the planet's history. The Quaternary glaciation (beginning ~2.6 mil

ice age glacial interglacial Milankovitch orbital eccentricity