Category Archives: Uncategorized

Kepler’s laws

Kepler’s laws

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Orbits in the centre of mass frame – energy and angular momentum

Orbits in the centre of mass frame – energy and angular momentum

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Ellipses

Ellipses

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Angular distances on the celestial sphere

Angular distances on the celestial sphere

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Julian dates

Julian dates

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Astronomical coordinates – declination and right ascension

Astronomical coordinates – declination and right ascension

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Sidereal and synodic periods of planets

Sidereal and synodic periods of planets

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Orthonormal and coordinate bases

Orthonormal and coordinate bases

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Gravitational redshift from the Killing vector

Gravitational redshift from the Killing vector

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Relation between energy and velocity of observer

Relation between energy and velocity of observer

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