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Distances - the ladder of starlight

astro

Parallax, Cepheids and supernovae measure cosmic distance, all read from LIGHT - a Maxwell wave carrying a spectrum and a redshift.

source

Narrow Highway — astro

card id

card_astro_distances

address

WIT.codex.FCT/distances-the-ladder-of-starlight/REF.WITNESSED@narrow-highway

adjoining cards

part of → Astronomy — orbits, distances, and the cosmos — a pillar (Distances - the ladder of starlight)
connects at → Maxwell's equations — the first unification — the distance ladder is read from starlight - electromagnetism