KnowraRetrograde motionLinked fromLinked fromThe 17 pages that link to Retrograde motion, each with the reason it gives.All 17Related 16Compared with 1AlmagestRelated: Epicycles reproduce the backward loops visible in planetary observations.Ptolemaic systemRelated: Epicycles reproduce this conspicuous pattern without Earth orbiting the Sun.Nicolaus CopernicusRelated: A moving Earth makes the apparent reversals of outer planets a consequence of changing viewpoints.Axial tiltCompared with: Retrograde rotation describes spin direction, not the angle of the rotation axis.HeliocentrismRelated: Earth’s changing viewpoint explains why outer planets sometimes appear to reverse direction.Copernican heliocentrismRelated: Earth overtakes outer planets, making their apparent backward loops intelligible without treating them as real reversals.Eudoxus of CnidusRelated: The sphere model sought to account geometrically for this observed reversal.Ancient Greek astronomyRelated: Explaining this conspicuous motion drove the construction of deferents and epicycles.GeocentrismRelated: Geocentric astronomers treated this conspicuous pattern as a problem their models had to explain.Claudius PtolemyRelated: Epicycles reproduce the backward loops visible in planets such as Mars.Copernican RevolutionRelated: Earth’s changing viewpoint explains why planets sometimes appear to reverse direction.Deferent and epicycleRelated: An epicycle makes a planet appear to reverse direction as it moves across the sky.Tychonic systemRelated: The combined orbital motions reproduce the planets' apparent backward loops.De revolutionibus orbium coelestiumRelated: Earth’s motion offers a geometric explanation for planets appearing to reverse direction.Halley's CometRelated: Halley travels around the Sun opposite the direction taken by most major planets.Celestial spheresRelated: Its irregular appearance challenged simple rotating shells and demanded more elaborate models.Copernican systemRelated: Earth’s changing position makes outer planets appear to reverse direction without a physical loop in their paths.
KnowraRetrograde motionLinked fromLinked fromThe 17 pages that link to Retrograde motion, each with the reason it gives.All 17Related 16Compared with 1AlmagestRelated: Epicycles reproduce the backward loops visible in planetary observations.Ptolemaic systemRelated: Epicycles reproduce this conspicuous pattern without Earth orbiting the Sun.Nicolaus CopernicusRelated: A moving Earth makes the apparent reversals of outer planets a consequence of changing viewpoints.Axial tiltCompared with: Retrograde rotation describes spin direction, not the angle of the rotation axis.HeliocentrismRelated: Earth’s changing viewpoint explains why outer planets sometimes appear to reverse direction.Copernican heliocentrismRelated: Earth overtakes outer planets, making their apparent backward loops intelligible without treating them as real reversals.Eudoxus of CnidusRelated: The sphere model sought to account geometrically for this observed reversal.Ancient Greek astronomyRelated: Explaining this conspicuous motion drove the construction of deferents and epicycles.GeocentrismRelated: Geocentric astronomers treated this conspicuous pattern as a problem their models had to explain.Claudius PtolemyRelated: Epicycles reproduce the backward loops visible in planets such as Mars.Copernican RevolutionRelated: Earth’s changing viewpoint explains why planets sometimes appear to reverse direction.Deferent and epicycleRelated: An epicycle makes a planet appear to reverse direction as it moves across the sky.Tychonic systemRelated: The combined orbital motions reproduce the planets' apparent backward loops.De revolutionibus orbium coelestiumRelated: Earth’s motion offers a geometric explanation for planets appearing to reverse direction.Halley's CometRelated: Halley travels around the Sun opposite the direction taken by most major planets.Celestial spheresRelated: Its irregular appearance challenged simple rotating shells and demanded more elaborate models.Copernican systemRelated: Earth’s changing position makes outer planets appear to reverse direction without a physical loop in their paths.