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Earth Is Drifting Away From The Sun, And So Are All The Planets
Forbes ^ | 1/3/19 | Ethan Siegel

Posted on 01/04/2019 12:07:50 PM PST by LibWhacker

On January 3rd, 2019, Earth reached the point in its orbit where it's at its closest approach to the Sun: perihelion. Every object orbiting a single mass (like our Sun) makes an ellipse, containing a point of closest approach that's unique to that particular orbit, known as periapsis. For the past 4.5 billion years, Earth has orbited the Sun in an ellipse, just like all the other planets orbiting their stars in all the other mature solar systems throughout the galaxy and Universe.

But there's something you may not expect or appreciate that nevertheless occurs: Earth's orbital path doesn't remain the same over time, but spirals outward. This year, 2019, our perihelion was 1.5 centimeters farther away than it was last year, which was more distant than the year before, etc. It's not just Earth, either; every planet drifts away from its parent star. Here's the science of why.

The force responsible for the orbits of every planet around every solar system in the Universe is the same: the universal law of gravitation. Whether you look at it in terms of Newton, where every mass attracts every other mass in the Universe, or in terms of Einstein, where mass-and-energy curves the fabric of spacetime through which other masses travel, the largest mass dominates the orbit of everything it influences.

(Excerpt) Read more at forbes.com ...


TOPICS: Astronomy; Science
KEYWORDS: astronomy; catastrophism; drifting; earth; orbit; science; sun; tidaltrnfrmomentum
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To: LibWhacker
1.5 centimeters a year

What if you round down?

61 posted on 01/04/2019 1:01:05 PM PST by DannyTN
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To: LibWhacker

If you consider that the sun’s gravity diminishes as you get further out from it then the 1.5cm would gradually increase over the course of one billion years.

It also means the earth was up to 100,000 miles closer to the sun in the distant past and that made almost no difference at all to the earth’s climate.

(-:


62 posted on 01/04/2019 1:01:24 PM PST by MeganC (There is nothing feminine about feminism.)
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To: LibWhacker

We might have to nuke the other side of the planet at night.


63 posted on 01/04/2019 1:02:06 PM PST by DannyTN
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To: LibWhacker

If only Trump hadn’t backed out of the Climate Summit.


64 posted on 01/04/2019 1:03:22 PM PST by LydiaLong
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To: DakotaGator

#3 You are correct as global means more hot air which is expanding the planets orbit.....


65 posted on 01/04/2019 1:08:49 PM PST by minnesota_bound
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To: LibWhacker

I’d like to know how many climate computer models take this into account! I bet none.

It may not be a short term factor but that they don’t take into account the changing activity in the Sun is problematic for me.


66 posted on 01/04/2019 1:09:01 PM PST by fuzzylogic (welfare state = sharing of poor moral choices among everybody)
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To: cuban leaf

“They honestly expect us to believe that baloney.”

That was my initial reaction as well.


67 posted on 01/04/2019 1:10:40 PM PST by jonno (Having an opinion is not the same as having the answer...)
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To: LibWhacker
So this solves global warming, right?

-PJ

68 posted on 01/04/2019 1:10:56 PM PST by Political Junkie Too (The 1st Amendment gives the People the right to a free press, not CNN the right to the 1st question.)
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To: 75thOVI; Abathar; agrace; aimhigh; Alice in Wonderland; AnalogReigns; AndrewC; aragorn; ...
It's called tidal transfer of momentum, and is also the reason the Moon shows the same face to the Earth during its orbit.



69 posted on 01/04/2019 1:11:55 PM PST by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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To: LibWhacker

When the world is runnin’ down
You make the best of what’s still around...

- The Police


70 posted on 01/04/2019 1:12:51 PM PST by P.O.E. (Pray for America)
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To: LibWhacker
One thing I read many years ago by Reasons to Believe at www.reasons.org (a bunch of old Earth Christians who are kinda science nerdy) is that it's amazing that the age of the Earth just happens to coincide with the age of the sun. Of the billions of years the Earth has there's only a relatively brief period where advanced life can exist on earth. Likewise the sun's lifespan is mostly chaotic except for a fairly brief time in which life can exist on a planet orbiting the sun.

Isn't it amazing that it just so happens that the Earth's window of time for life coincides with the sun's window of time for life. More than amazing, it's an example of a creative Hand.

71 posted on 01/04/2019 1:13:13 PM PST by Tell It Right (Enjoy the playoffs while you can, Bama is winning it too much for it to stay. :))
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To: LibWhacker

The Dems are trying to find out how to tax this phenomenon.


72 posted on 01/04/2019 1:13:36 PM PST by SERKIT ("Blazing Saddles" explains it all.......)
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To: Red Badger

“The Midnight Sun,” Twilight Zone


73 posted on 01/04/2019 1:17:38 PM PST by pabianice
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To: LibWhacker

Women and Minorities Hardest Hit


74 posted on 01/04/2019 1:29:32 PM PST by CaptainPhilFan
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To: LibWhacker

So, should I scrap the plans for the Dyson Sphere or not? Tic-toc!


75 posted on 01/04/2019 1:29:47 PM PST by numberonepal (WWG1WGA)
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To: LibWhacker

The Moon is also drifting away from the Earth at about two inches a year. At a distance between Earth and the Moon of around 240,000 miles it’s a kind of slow drift. Course, we could always have a big chunk of iron or a comet come smashing into us. If it ain’t one thing, it’s another.


76 posted on 01/04/2019 1:30:11 PM PST by jmacusa (Made it Ma, top of the world!'')
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To: LibWhacker

For now everybody needs to go to one side of the planet.


77 posted on 01/04/2019 1:33:56 PM PST by shanover (...To disarm the people is the best and most effectual way to enslave them.-S.Adams)
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To: LibWhacker

It’s due to a very simple reason. As the Sun fuses hydrogen into helium, a small portion of its mass is turned into energy. As the Sun loses mass, the gravitational pull it exerts lessens (very) slightly, resulting in everything orbiting it (very) slowly expanding their orbits.


78 posted on 01/04/2019 1:37:45 PM PST by Simon Green ("Arm your daughter, sir, and pay no attention to petty bureaucrats.”)
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To: fwdude

Guess I’m going to need to fire up the SUV and let it idle in the driveway every night to counteract Global Cooling.


79 posted on 01/04/2019 1:42:25 PM PST by Reagan80 ("In this current crisis, government is not the solution to our problems, government IS the problem")
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To: onedoug

Oh, we can tax it. Sure as shooting a dingbat dem will bring it up.


80 posted on 01/04/2019 1:43:45 PM PST by AFreeBird
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