Each planet's angle from it's argument of perihelion

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SUMMARY

This discussion focuses on calculating each planet's angle from its argument of perihelion, specifically seeking a chart that illustrates this angle over time on Earth. The user distinguishes between needing a chart and an ephemeris, emphasizing the requirement for the angle along the elliptical path, known as the true anomaly. The discussion references the JPL (Jet Propulsion Laboratory) charts, which provide the Longitude of the Ascending Node (LAN) and the Longitude of the Perihelion (LP). The formula for calculating the Argument of Perihelion (PA) is established as PA = LP - LAN.

PREREQUISITES
  • Understanding of celestial mechanics and orbital elements
  • Familiarity with the concepts of Longitude of the Ascending Node (LAN) and Longitude of the Perihelion (LP)
  • Basic knowledge of 3D geometry and angles in astronomy
  • Experience with astronomical data sources, particularly JPL resources
NEXT STEPS
  • Research how to derive true anomaly from orbital elements
  • Explore advanced celestial mechanics textbooks for deeper insights
  • Learn to use JPL's SPICE toolkit for planetary position calculations
  • Investigate software tools for visualizing planetary orbits and angles
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Astronomers, astrophysicists, and students studying celestial mechanics who need to calculate and visualize planetary angles and orbits.

Philosophaie
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I am looking for a chart for each planet. This chart must contain each planet's angle from it's argument of perihelion for a particular time on Earth time. I am not looking for an ephemeris, I don't think. I need the angle along the eliptical path of the planet or the true anomaly.
 
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These JPL charts doen't give the Argument of Perihelion(PA). The charts do give Longitude of the Ascending Node(LAN) and the Longitude of the Perihelion(LP). The equation for this is:
PA=LP-LAN
These are 3D compound angles. Is there an easy formula to calculate this?
 

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