On the Motion of Comet Halley

On the Motion of Comet Halley

by Werner Landgraf

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**On the Motion of Comet Halley** Orbit Determination and backward integration until 2317 B.C. of Comet Halley , and a prediction and analysis of the error ellipsoid of its position and velocity in March 1986 for optimize the flyby parameters of space probes. Bahnbestimmung und Rückrechnung bis 2317 v.Chr. des Halleyschen Kometen, sowie Abschätzung und Analyse des Fehlerellipsoides seiner Position und Geschwindigkeit für März 1986 zur Optimierung der Vorbeifluggeometrie von Raumsonden.

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  1. 1

    How does the realization of tracking an object nearly 4,500 years into the past change your perspective on human history versus cosmic time?

  2. 2

    In what ways does Landgraf’s work bridge the gap between ancient historical observations and modern space exploration?

  3. 3

    If you had to explain the concept of an "error ellipsoid" and its high-stakes importance to space probe optimization to someone outside the sciences, how would you describe it?

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