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04.08.2026Astronomical Algorithms
A living, interactive implementation notebook for Jean Meeus's classic astronomical recipes.

Articles about space engineering, orbital mechanics, and astronomy
A living, interactive implementation notebook for Jean Meeus's classic astronomical recipes.

An interactive field guide to gravity harmonics, drag, third bodies, sunlight, tides, and relativity.
What a flight dynamics system actually does, and an honest look at who builds this software today.

An introductory look into classical orbital mechanics.
