What is the time of perihelion for different planets?

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SUMMARY

The perihelion dates for various planets are crucial for understanding their orbits. For instance, Earth's perihelion occurs on December 21, with a distance of 91.4 million miles from the Sun. Mercury's perihelion is on October 16, 1995, while Venus's is on August 11, 1995. The discussion highlights the need for reliable sources to verify these dates, with a reference to Astronomy Cafe for further information.

PREREQUISITES
  • Understanding of celestial mechanics
  • Familiarity with astronomical terminology
  • Knowledge of perihelion and aphelion concepts
  • Basic skills in data interpretation from astronomical tables
NEXT STEPS
  • Research perihelion and aphelion dates for all planets in the solar system
  • Explore the effects of perihelion on planetary climate
  • Learn about the historical significance of perihelion observations
  • Investigate tools for calculating planetary orbits, such as NASA's JPL Horizons
USEFUL FOR

Astronomers, educators, and students interested in planetary science and orbital mechanics will benefit from this discussion.

Bjarne
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Does someone know where to find information about what time different planets have their perihelion?
For example Earth is 3 January.
 
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Bjarne said:
Does someone know where to find information about what time different planets have their perihelion?
For example Earth is 3 January.

Excerpt:

Next Date

Distance (mega miles) Perihelion Aphelion
Mercury 28.6 43.4 10/16/1995 11/29/1995
Venus 66.8 67.7 8/11/1995 12/1/1995
Earth 91.4 94.5 12/21/1995 6/21/1996
Mars 128.4 154.9 2/19/1996 1/28/1997
Jupiter 460.3 507.2 5/5/1999 3/29/2005
Saturn 837.6 936.2 5/26/2003 2/8/2018
Uranus 1699.0 1868.0 3/1/2050 4/17/2008
Neptune 2771.0 2819.0 3/2030 2/2112
Pluto 2756.0 4555.0 8/1989 8/2113 .


http://www.astronomycafe.net/qadir/q47.html


As you can see he has December 21 for Earth's Perihelion of 91.4 million miles. Whether his is more accurate I don't know.
 
Last edited:

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