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Author Topic: The Moon's Phases in the Real (spheroid) Earth World  (Read 11966 times)

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Re: The Moon's Phases in the Real (spheroid) Earth World
« Reply #5 on: February 06, 2018, 06:30:12 PM »
I thought the natural physics of a liquid was to conform to its container (much like a cat), not simply find level.  
It does both.  But, when have you seen the ocean surface curve?  The roundness of the hump between the distance of 100 miles would be 66 feet higher than either end, according to the math commensurate of a 25,000 mi ball.  Uh, no. 

Re: The Moon's Phases in the Real (spheroid) Earth World
« Reply #6 on: February 08, 2018, 11:51:56 PM »
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There is only one degree of curvature in every 70 miles of earth's surface - too small to notice normally.
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Anyway, looks like everyone missed another quarter moon opportunity.
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There will be more, two each month.
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Re: The Moon's Phases in the Real (spheroid) Earth World
« Reply #7 on: February 12, 2018, 12:04:26 AM »
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The blood supermoon eclipse of January 31st was eagerly anticipated by amateur astronomers all over the country, as it turns out, for several years.
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There have been thousands of independent observers making meticulous records of this great event.
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Some of them are posting their work online but it seems others are trying to make it into more sophisticated products.
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The OP of this thread embeds two videos that are quite helpful in understanding what happened.
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Here are some web images that do a great job of summarizing what took place.
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And notice how very accurately it was expected compared to what actually happened -- they are identical.
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The moon is shown moving through the umbra of the earth's darkest shadow conical section.
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The times are shown when these key points would happen, and each point happened just as predicted.
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The following one shows a chart plotting the points of greatest visibility:
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So everyone all over the world would know in advance where they could go to see it if they wanted to see it.
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This one puts both together in one place:
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Re: The Moon's Phases in the Real (spheroid) Earth World
« Reply #8 on: February 12, 2018, 11:00:12 PM »
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Saturday, March 24th will be your next opportunity to measure the angle between the quarter moon and the sun.
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Re: The Moon's Phases in the Real (spheroid) Earth World
« Reply #9 on: March 01, 2018, 10:45:11 PM »
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The full moon is visible right now.
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As it rises to its overhead position, high in the sky, the time will approach midnight. The full moon does this everywhere on earth no matter where you go. Whenever it's a full moon, the highest position it takes in the sky is when the sun is in the middle of its night time cycle.
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If you set up a length of pipe pointing at the moon so that the moon's light shines through the pipe, the moon's light will be shining through the pipe at the ground under your feet.
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That moonlight on the ground is pointing the way to the sun. The pipe also points at the sun.
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The sun is hidden by the earth and is on the opposite side of the earth, where the pipe is pointing.
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This is a very simple exercise you can do every time you see a full moon, and you can do it anywhere on earth.
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