Offline Flatout

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Angular Diameter change of Venus and Mars
« on: March 21, 2017, 01:37:50 AM »
I've been watching Venus and Mars nightly for nearly a year when the weather allows. It's been very neat to watch the phases of Venus change.  I've also been comparing their angular diameter changes.   I've watch Venus grow almost 6 times in size.   Mars has shrunk about 5.5 times since this time 1 year ago.   What is TFES explanation for this size change?   I couldn't find anything in the Wiki.  The principles of perspective would suggest a significant change in distance (6 times the distance)  from the earth.

Offline Flatout

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Re: Angular Diameter change of Venus and Mars
« Reply #1 on: March 22, 2017, 03:27:56 AM »
So am I to take the lack of  response to mean that TFES has no explanation for the changing angular diameter of Venus and Mars?

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Offline Tom Bishop

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Re: Angular Diameter change of Venus and Mars
« Reply #2 on: Today at 05:19:04 PM »
What about this event can only happen if the earth were a globe?

Offline Flatout

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Re: Angular Diameter change of Venus and Mars
« Reply #3 on: Today at 05:39:02 PM »
What about this event can only happen if the earth were a globe?

Take a look at this link and see the position of the planets.  Venus is close and at the largest that I've observed over the last year.  Mars is opposite us in the orbit and has been getting smaller for about 8 months by my observations.

http://www.theplanetstoday.com

I've been trying to figure out what the flat earth explanation could  be.  The planets would have to orbit above the earth daily, change their orbital speed at times to explain for the retrograde motion compared to the stars,  and increase their height by 5 or 6 times through out their individual cycles.

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Offline Tom Bishop

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Re: Angular Diameter change of Venus and Mars
« Reply #4 on: Today at 05:43:51 PM »
Retrograde motion of the planets is described here.

I still don't see what the angular size change of a body above us has to do with the shape of the earth.

Offline Flatout

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Re: Angular Diameter change of Venus and Mars
« Reply #5 on: Today at 05:56:31 PM »
Retrograde motion of the planets is described here.

I still don't see what the angular size change of a body above us has to do with the shape of the earth.
The observed angular diameter change fits with the heliocentric model.  What is the flat earth explanation?

Offline Flatout

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Re: Angular Diameter change of Venus and Mars
« Reply #6 on: Today at 06:05:15 PM »
Retrograde motion of the planets is described here.

I still don't see what the angular size change of a body above us has to do with the shape of the earth.
Obviously the diagram in that explanation doesn't work.  The orbit of the planet around the sun would have to be much larger for it to  be out of the spot light and observable at night.  What is the orbital distance between the Sun and Venus in your model?   What is its orbital period?

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Offline Tom Bishop

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Re: Angular Diameter change of Venus and Mars
« Reply #7 on: Today at 06:06:41 PM »
Retrograde motion of the planets is described here.

I still don't see what the angular size change of a body above us has to do with the shape of the earth.
The observed angular diameter change fits with the heliocentric model.  What is the flat earth explanation?

The explanation is that the observed angular change fits with the flat earth model.

Offline Flatout

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Re: Angular Diameter change of Venus and Mars
« Reply #8 on: Today at 06:10:28 PM »
Retrograde motion of the planets is described here.

I still don't see what the angular size change of a body above us has to do with the shape of the earth.
The observed angular diameter change fits with the heliocentric model.  What is the flat earth explanation?

The explanation is that the observed angular change fits with the flat earth model.
How does an observed angular diameter change of 5x fit with model?  Please explain.
If you can tell me orbital period and orbital diameter of Venus around the sun, I'll plot it out and see if it fits.  Maybe you've already done this since you say it works.

Secondly, you must not ascribe to the firmament model.  For Venus to have a large enough orbit to be out of the light of the sun its orbit would have to go outside of the dome.....or the dome would have to be quite a bit larger than the flat earth map.
« Last Edit: Today at 06:31:39 PM by Flatout »

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Offline Tom Bishop

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Re: Angular Diameter change of Venus and Mars
« Reply #9 on: Today at 06:13:03 PM »
How does an observed angular diameter change of 5x fit with model?  Please explain.

The angular change happened, and the earth was still flat underneath it. I don't see any sort of explanation for why it could only happen on a globe earth and none other.

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If you can tell me orbital period and orbital diameter of Venus around the sun, I'll plot it out and see if it fits.  Maybe you've already done this since you say it works.

Why should we care enough to know that if it's not going to tell us whether the earth is a globe or not? Do we have to know what the temperature of uranus is too?

Offline Flatout

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Re: Angular Diameter change of Venus and Mars
« Reply #10 on: Today at 06:39:06 PM »
Tom, I would say that if your model cannot account for some basic observations that a person can make from their back yard with a telescope,  then the model maybe suspect.  Secondly, If there is an unwillingness to account for the observation then the driving force behind a your model may not be derived from observation.