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orbital-elements × 162orbit × 57
orbital-mechanics × 49
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earth × 14
observational-astronomy × 13
binary-star × 11
exoplanet × 8
celestial-mechanics × 8
the-moon × 7
gravity × 7
mathematics × 6
eccentric-orbit × 6
trans-neptunian-object × 6
star × 5
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astrophysics × 5
coordinate × 5
satellite × 5
kepler × 5
ephemeris × 5
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asteroids × 3
positional-astronomy × 3