Jupiter Sun Distance

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gigabite
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Jupiter Sun Distance

#1 Postby gigabite » Sun Aug 17, 2014 7:57 pm

Image

This image is a plot of the perihelion distance of Jupiter for 33 orbits.
Notice the break of the trend line at the most recent closest approach.
Jupiter is the most massive planet in the solar system. Jupiter and Venus
are responsible for a total of 2% of tidal motion on Earth, 1% each. The
significances of the trend is that the closest approach of Jupiter to the Sun
is the closest approach of Earth to Jupiter. As Earth moves away from the
Sun it cools, and if solar cycle 24 is an example then the size of the
chronosphere may also shrink.
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#2 Postby gigabite » Tue Aug 19, 2014 8:44 pm

"If a point source radiates light uniformly in all directions through a non-absorptive medium, then the irradiance decreases in proportion to the square of the distance from the object."
http://en.m.wikipedia.org/wiki/Irradiance, captured 8-19-2014

So as Jupiter's perihelion continues to get closer to the Sun then Earth's orbit will tend to move away from the Sun. The figure below is ephemeris data for Earth's perihelion plus aphelion distance. Note that the strong pull away from the Sun in 2011.

Image
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Re: Jupiter Sun Distance

#3 Postby gigabite » Wed Aug 20, 2014 7:26 pm

Image
The image above is a plot of the temperature inside the SOHO satellite.
The SOHO satellite has the same orbital period around the sun as earth
and is located near a gravity free point between the Earth and the Sun.
The temperature difference between the Earth aphelion and perihelion
swings of SOHO is about 6 degrees Celsius.

Using that as a basis, and assuming that the temperature at of the
satellite at the vernal equinox is zero the temperature either side
of the equinox would be +/- 3 degrees.

The W/M^2 at 1 Astronomic Unit is 1293.24 the average W/M^2
at aphelion is 1251.09. In 2011 the W/M^2 at aphelion was
1251.00. Giving a temperature change from aphelion to aphelion
of minus 0.0064 degrees .

Dt=3*(1251.09-1251.00/1251.09-1293.24)

http://www.pveducation.org/pvcdrom/prop ... n-in-space captured 08-20-2014

irradiance at 1au http://lasp.colorado.edu/lisird/sorce/s ... index.html
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Conjunction between the Moon and Jupiter

#4 Postby gigabite » Mon Sep 01, 2014 9:50 am

This is reference data for the next conjunction of the Full Moon and Jupiter

Thu, 11 Dec 2014 at 19:53 EST (101 days away)
Thu, 08 Jan 2015 at 00:38 EST (129 days away)
http://in-the-sky.org/newsindex.php?feed=conjunctions

Solar System: Thu 2015 Jan 8 0:38
https://www.fourmilab.ch/cgi-bin/Solar

Earth Perihelion
2014-Jan-04 00:00 AU= 0.98337452246406
2015-Jan-04 00:00 AU= 0.98331696069069
2016-Jan-03 00:00 AU= 0.98334325631154
http://ssd.jpl.nasa.gov/horizons.cgi

next closest approach of Jupiter
2015-Feb-06 00:00 AU= 4.34617391443547
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