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orbital-elements × 84orbit × 27
orbital-mechanics × 18
planet × 13
earth × 11
observational-astronomy × 9
solar-system × 6
the-sun × 5
star × 4
exoplanet × 4
binary-star × 4
satellite × 4
the-moon × 3
astrophysics × 3
mathematics × 3
fundamental-astronomy × 2
coordinate × 2
natural-satellites × 2
positional-astronomy × 2
celestial-mechanics × 2
artificial-satellite × 2
software × 2
python × 2
velocity × 2
orbital-migration × 2
