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67 results for "stellar classification" — page 4 of 4

ZH_3_17 Credible Archaeoastronomy

ZH_3_17 — Amazonian Astronomical Traditions

Amazonian indigenous astronomical traditions represent some of the least-documented but most sophisticated non-Western star knowledge systems, integrating stellar observation with ecological management, seasonal agricult

Amazonian-astronomy ethnoastronomy Desana Barasana dark-cloud-constellations Pleiades-calendar
ZH_1_20 Credible Archaeoastronomy

ZH_1_20 — Egyptian Decans & Star Clocks: Timekeeping by the Night Sky

The Egyptian decan system — a method of dividing the night sky into 36 stellar groups (decans) whose sequential heliacal risings (first visible appearance on the eastern horizon just before sunrise) marked ten-day period

decan egyptian-astronomy star-clock diagonal-star-table coffin-texts-astronomy heliacal-rising
Q_2_16 Verified Cosmology & Physics

Q_2_16 — White Dwarfs, Type Ia Supernovae, and Standard Candles

White dwarfs — the remnant cores of low- and intermediate-mass stars (initial mass < ~8 M☉, ~97% of all stars) — are dense objects supported against gravitational collapse by electron degeneracy pressure, with typical ma

white dwarf Type Ia supernova standard candle Chandrasekhar limit electron degeneracy pressure carbon-oxygen white dwarf
Q_3_11 Verified Cosmology & Physics

Q_3_11 — Cosmic Reionization and First Stars

The Epoch of Reionization (EoR) refers to the period in cosmic history (~150 million to ~1 billion years after the Big Bang, redshifts z ≈ 15–6) when the first luminous sources — Population III (Pop III) stars, early gal

reionization epoch of reionization EoR first stars Population III Pop III
G_2_16 Credible Modern Frameworks

G_2_16 — Phylogenetic Methods in Material Culture Analysis

Phylogenetic methods — originally developed in evolutionary biology to reconstruct the branching history of species from shared inherited characteristics — have been adapted for analyzing the evolutionary (descent-with-m

phylogenetics cladistics cultural phylogeny material culture tree branching
T_2_20 Verified Psychology & Social

T_2_20 — Personality Disorders: Cluster Analysis and Dimensional Models

Personality disorders (PDs) — enduring patterns of inner experience and behavior that deviate markedly from cultural expectations, are pervasive and inflexible, and cause significant functional impairment — affect approx

personality disorder DSM-5 cluster B borderline narcissistic antisocial
F_4_12 Lost Connections

F_4_12 — Bantu Expansion: Africa's Great Migration and Iron Age Spread

The Bantu Expansion is the most consequential demographic and linguistic transformation in African history. Beginning from a homeland in the grasslands of modern Cameroon and southeastern Nigeria around 3000 BCE, Bantu-s

Bantu expansion Bantu languages Greenberg Guthrie Ehret Niger-Congo