What is the time of perihelion for different planets?

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In summary, the time of perihelion is when a planet is closest to the sun in its orbit. For Earth, this occurs on January 3rd each year, while for other planets it may occur at different intervals based on their orbital period. The time of perihelion can also vary due to gravitational interactions with other objects in the solar system. To calculate the time of perihelion, one can use a planet's orbital period and position in its orbit, or apply Kepler's laws of planetary motion.
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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.
 
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FAQ: What is the time of perihelion for different planets?

When is the time of perihelion for Earth?

The time of perihelion for Earth occurs on January 3rd each year. This is when Earth is closest to the sun in its orbit.

How often does the time of perihelion occur for each planet?

The time of perihelion occurs once every orbital period for each planet. This means that it may occur once a year for Earth, but every 165 Earth years for Neptune.

Is the time of perihelion the same for all planets?

No, the time of perihelion varies for each planet depending on its orbital period and distance from the sun. For example, Mercury's time of perihelion occurs roughly every 88 Earth days, while Neptune's occurs every 165 Earth years.

How is the time of perihelion calculated?

The time of perihelion is calculated using a planet's orbital period and its position in its orbit. It can also be calculated using Kepler's laws of planetary motion.

Can the time of perihelion change over time?

Yes, the time of perihelion can change over time due to gravitational interactions with other planets and objects in the solar system. This can cause slight variations in a planet's orbit and therefore the time of perihelion.

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