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The sun is randomly out of position.

 
74444

User ID: 74444
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07/14/2016 01:14 PM
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Re: The sun is randomly out of position.
If you can prove that current models match known observations from the 19th and 20th century, then I will accept the sun is exactly where it should be.
 Quoting: Anonymous Coward 70216415


Why only *one* century?

Stonehenge. Chichen Itza. Elephant's Tomb in Seville. Newgrange in Ireland. The Peru Pyramid. The Thirteen Towers in Chankillo.

Current models match known observations from multiple times dating back both hundreds and thousands of years -- since all these observatories act predictably.

QED.
74444

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07/14/2016 01:16 PM
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Re: The sun is randomly out of position.
The earth is beginning to tilt back upon its TRUE norms relative to the sun.
 Quoting: Anonymous Coward 70216415


Yet the North Star *remains* the North star. This simple observation belies everything else you wrote.
Dr. AstroModerator
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User ID: 72424007
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07/14/2016 01:26 PM

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Re: The sun is randomly out of position.
This is really irrelevant to the discussion. The point is that basic observation should solve the debate. Since I'm assuming, you can't go back in time... then the very next best thing would be for you to actually pull up historical records and compare and contrast. You know, the basic ground work of science, i.e field work. You know, the hard shit.. and not punching a few keys into your gps controlled telescope.

If you can prove that current models match known observations from the 19th and 20th century, then I will accept the sun is exactly where it should be. And, note: I am not asking for copy and paste hubris. In order to successfully prove your point, I will really be impressed if you actually went out and compared actual historical records, i.e. went to the library and came back to us all. You know... textual evidence.
 Quoting: Anonymous Coward 70216415


K, done.
Here are my measurements of the sun this evening. First, here's a picture of the sun I shot on a tripod with my camera and a Thousand Oaks Type 2+ solar filter:
[link to www.flickr.com (secure)]
It was a bit cloudy, but still a serviceable photo for these purposes. EXIF data intact, the time zone is eastern time, 4 hours behind UT. I left the camera undisturbed for several hours and then took a 1 second exposure without the solar filter:
[link to www.flickr.com (secure)]
Yes, for convenience I was shooting through my window the whole time. Not going for pretty astrophotography here. I then layered the two images together so that the sun's previous position in the image could be directly seen in the second image. I also used dynamic background subtraction to remove the light pollution:
[link to www.flickr.com (secure)]
I astrometrically solved the image here:
[link to nova.astrometry.net]
The astrometry isn't perfect, but again, it's serviceable for our purposes. Note that the resolution of the image is 12 arcseconds per pixel. 20/20 vision is the ability to resolve a spatial separation of 1 minute of arc, 60 arcseconds, so this image is about 5 times higher in resolution than that.

Now, I used my spreadsheet to calculate the expected location and geometric alt/az of the sun using Newcomb's theory:

Input
Year 2016
month 7
day 7
hour (UT) 23
minute 16
second 48
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 25

Solar Coordinates
Apparent Right Ascension at Equinox of date
Hours 7
Minutes 10
Seconds 27
Apparent Declination at Equinox of date
Degrees 22
Minutes 26
Seconds 46

Altitude (degrees) 13.3992166
Azimuth (degrees, 0 North) 288.6105497

[link to dropcanvas.com]

I then converted the geometric altitude and azimuth to J2000 equatorial coordinates at the time of the second photo:

Input
Year 2016
month 7
day 8
hour (UT) 2
minute 2
second 14
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 15

Convert to RA and Dec
Geometric Altitude 13.3992166
Azimuth 288.6105497

RA J2000
9
55
25.28
Dec J2000
22
31
29.9
[link to dropcanvas.com]

Plugging these numbers into the astrometrically solved image shows that the Sun's expected location (the green circle) matches its observed location:

[link to www.flickr.com (secure)]
 Quoting: Dr. Astro


And yes, I made my spreadsheet myself, this isn't just "copy/paste BS." The spreadsheet is based on Newcomb's numbers for calculating the position of the sun, using Jean Meeus' truncated method published decades ago. I used the actual book, from the library.
[link to www.worldcat.org]
You can verify it against Newcomb's own book as well:
[link to www.worldcat.org]
astrobanner2
Dr. Feelgood
User ID: 9734761
United Kingdom
07/14/2016 01:59 PM
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Re: The sun is randomly out of position.
The earth is beginning to tilt back upon its TRUE norms relative to the sun.
 Quoting: Anonymous Coward 70216415


Yet the North Star *remains* the North star. This simple observation belies everything else you wrote.
 Quoting: Dr. Scholl


BTW you were asking me to explain to you about the Earth's topology. Here you go Thread: The sun is randomly out of position. (Page 19)

 
Anonymous Coward
User ID: 72571617
Norway
07/14/2016 02:12 PM
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Re: The sun is randomly out of position.
This is really irrelevant to the discussion. The point is that basic observation should solve the debate. Since I'm assuming, you can't go back in time... then the very next best thing would be for you to actually pull up historical records and compare and contrast. You know, the basic ground work of science, i.e field work. You know, the hard shit.. and not punching a few keys into your gps controlled telescope.

If you can prove that current models match known observations from the 19th and 20th century, then I will accept the sun is exactly where it should be. And, note: I am not asking for copy and paste hubris. In order to successfully prove your point, I will really be impressed if you actually went out and compared actual historical records, i.e. went to the library and came back to us all. You know... textual evidence.
 Quoting: Anonymous Coward 70216415


K, done.
Here are my measurements of the sun this evening. First, here's a picture of the sun I shot on a tripod with my camera and a Thousand Oaks Type 2+ solar filter:
[link to www.flickr.com (secure)]
It was a bit cloudy, but still a serviceable photo for these purposes. EXIF data intact, the time zone is eastern time, 4 hours behind UT. I left the camera undisturbed for several hours and then took a 1 second exposure without the solar filter:
[link to www.flickr.com (secure)]
Yes, for convenience I was shooting through my window the whole time. Not going for pretty astrophotography here. I then layered the two images together so that the sun's previous position in the image could be directly seen in the second image. I also used dynamic background subtraction to remove the light pollution:
[link to www.flickr.com (secure)]
I astrometrically solved the image here:
[link to nova.astrometry.net]
The astrometry isn't perfect, but again, it's serviceable for our purposes. Note that the resolution of the image is 12 arcseconds per pixel. 20/20 vision is the ability to resolve a spatial separation of 1 minute of arc, 60 arcseconds, so this image is about 5 times higher in resolution than that.

Now, I used my spreadsheet to calculate the expected location and geometric alt/az of the sun using Newcomb's theory:

Input
Year 2016
month 7
day 7
hour (UT) 23
minute 16
second 48
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 25

Solar Coordinates
Apparent Right Ascension at Equinox of date
Hours 7
Minutes 10
Seconds 27
Apparent Declination at Equinox of date
Degrees 22
Minutes 26
Seconds 46

Altitude (degrees) 13.3992166
Azimuth (degrees, 0 North) 288.6105497

[link to dropcanvas.com]

I then converted the geometric altitude and azimuth to J2000 equatorial coordinates at the time of the second photo:

Input
Year 2016
month 7
day 8
hour (UT) 2
minute 2
second 14
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 15

Convert to RA and Dec
Geometric Altitude 13.3992166
Azimuth 288.6105497

RA J2000
9
55
25.28
Dec J2000
22
31
29.9
[link to dropcanvas.com]

Plugging these numbers into the astrometrically solved image shows that the Sun's expected location (the green circle) matches its observed location:

[link to www.flickr.com (secure)]
 Quoting: Dr. Astro


And yes, I made my spreadsheet myself, this isn't just "copy/paste BS." The spreadsheet is based on Newcomb's numbers for calculating the position of the sun, using Jean Meeus' truncated method published decades ago. I used the actual book, from the library.
[link to www.worldcat.org]
You can verify it against Newcomb's own book as well:
[link to www.worldcat.org]
 Quoting: Dr. Astro


Wow I am impressed. You did exactly what the AC ask for. Even before he ask incredible. He must be impressed out of his boots.
Dr. Feelgood
User ID: 9734761
United Kingdom
07/14/2016 03:30 PM
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Re: The sun is randomly out of position.
Where is the Sun and how long has it been rising there?

"It seems like years since it's been here" Where is "here"? A particular spot on the horizon? A hidden message in plain sight? "Parecía como si la luz no había existido durante años" It seems the light has not existed for years?



[link to www.youtube.com (secure)]

 
Anonymous Coward
User ID: 69340041
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07/14/2016 03:45 PM
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Re: The sun is randomly out of position.
But the rest was impressive Dr Feelgood. Even though we where a few pages ahead before he got it all down.
 Quoting: Anonymous Coward 72573076


Got it. You are impressed by irrational mumbo-jumbo as long as you agree with the person viewpoint.

Look up confirmation bias.
 Quoting: Anonymous Coward 69340041


Wait what?? I don't agree with his viewpoint. The opposing view if you bothered to read his eloquent post.
 Quoting: Anonymous Coward 72573076


So you don't believe the Earth tilted then.
Anonymous Coward
User ID: 69340041
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07/14/2016 03:55 PM
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Re: The sun is randomly out of position.
Here is a rather clever idea. Instead of basing your conclusion on where the sun "should" be right now, why not just go to primary texts and check for yourself.

I mean, the 19th and 20th centuries are replete with what were called farmer's almanacs which actually recorded celestial events. Note: I said, they "recorded." You get that? In other words, you would have a vast literature unto which you could base any current day observation.

Lemme know when you have bothered to do that.
 Quoting: Anonymous Coward 70216415


Do they record the Sun's colour?

.
 Quoting: Dr. Feelgood 9734761


*color*

And why the extra period for no reason? Not very grammatically correct.
Anonymous Coward
User ID: 69340041
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07/14/2016 03:58 PM
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Re: The sun is randomly out of position.
Earth wobble? Watch from 2 mins til 4 mins.

[link to m.youtube.com (secure)]
 Quoting: Anonymous Coward 72557755


Fallacy by youtube.
 Quoting: Anonymous Coward 69340041


Prøve it please. This is info was provided by the good Dr V Tepes
 Quoting: Dr Heyerdahl 72577034


By rules of logic, he has to prove what he says is correct. I do not have to prove what he says is wrong. He has provided no such proof.
Dr. Feelgood
User ID: 9734761
United Kingdom
07/14/2016 04:01 PM
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Re: The sun is randomly out of position.
Here is a rather clever idea. Instead of basing your conclusion on where the sun "should" be right now, why not just go to primary texts and check for yourself.

I mean, the 19th and 20th centuries are replete with what were called farmer's almanacs which actually recorded celestial events. Note: I said, they "recorded." You get that? In other words, you would have a vast literature unto which you could base any current day observation.

Lemme know when you have bothered to do that.
 Quoting: Anonymous Coward 70216415


Do they record the Sun's colour?

.
 Quoting: Dr. Feelgood 9734761


*color*

 Quoting: Anonymous Coward 69340041


*colour*

And why the extra period for no reason? Not very grammatically correct.
 Quoting: Anonymous Coward 69340041


It's a secret gang sign.

 
Anonymous Coward
User ID: 69340041
United States
07/14/2016 04:06 PM
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Re: The sun is randomly out of position.
Here is a rather clever idea. Instead of basing your conclusion on where the sun "should" be right now, why not just go to primary texts and check for yourself.

I mean, the 19th and 20th centuries are replete with what were called farmer's almanacs which actually recorded celestial events. Note: I said, they "recorded." You get that? In other words, you would have a vast literature unto which you could base any current day observation.

Lemme know when you have bothered to do that.
 Quoting: Anonymous Coward 70216415


Do they record the Sun's colour?

.
 Quoting: Dr. Feelgood 9734761


*color*

 Quoting: Anonymous Coward 69340041


*colour*

And why the extra period for no reason? Not very grammatically correct.
 Quoting: Anonymous Coward 69340041


It's a secret gang sign.

 
 Quoting: Dr. Feelgood 9734761


*color*
Dr Heyerdahl
User ID: 72571617
Norway
07/14/2016 04:11 PM
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Re: The sun is randomly out of position.
Earth wobble? Watch from 2 mins til 4 mins.

[link to m.youtube.com (secure)]
 Quoting: Anonymous Coward 72557755


Fallacy by youtube.
 Quoting: Anonymous Coward 69340041


Prøve it please. This is info was provided by the good Dr V Tepes
 Quoting: Dr Heyerdahl 72577034


By rules of logic, he has to prove what he says is correct. I do not have to prove what he says is wrong. He has provided no such proof.
 Quoting: Anonymous Coward 69340041


Hmm logic like using NASA imagery with time stamps to prove his point? Where's your contradicting evidence?
I'll take Dr V Tepes word over yours anyday.
Anonymous Coward
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Norway
07/14/2016 04:19 PM
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Re: The sun is randomly out of position.
Your rules of logic are illogical if they do not apply to yourself.
Anonymous Coward
User ID: 69340041
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07/14/2016 04:29 PM
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Re: The sun is randomly out of position.
...


Fallacy by youtube.
 Quoting: Anonymous Coward 69340041


Prøve it please. This is info was provided by the good Dr V Tepes
 Quoting: Dr Heyerdahl 72577034


By rules of logic, he has to prove what he says is correct. I do not have to prove what he says is wrong. He has provided no such proof.
 Quoting: Anonymous Coward 69340041


Hmm logic like using NASA imagery with time stamps to prove his point? Where's your contradicting evidence?
I'll take Dr V Tepes word over yours anyday.
 Quoting: Dr Heyerdahl 72571617




It isn't the images. It is his interpretation. First off, he starts by assuming that the Earth is rather then allowing the data to speak for itself. It is called affirming the consequent.

The biggest problem is that he doesn't know what a sun synchronous orbit is.

[link to modis.gsfc.nasa.gov]

[link to earthobservatory.nasa.gov]

[link to www.encyclopedia.com]

Understanding a sun synchronous orbit explains his observation completely without resorting to the wobbling Earth garbage.

The northern hemisphere of Earth tilts toward the Sun June/July/August. It tilts away from the Sun in January/February/March. Since the satellite is oriented with the Sun, the Earth will seem to wobble back and forth throughout the year, which is exactly what he is showing. Just the effect of a Sun synchronous orbit.
Anonymous Coward
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07/14/2016 04:31 PM
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Re: The sun is randomly out of position.
Your rules of logic are illogical if they do not apply to yourself.
 Quoting: Anonymous Coward 72571617


That makes zero sense. My claim is nothing has changed. The extraordinary claim is that things have changed so he, and you, have to provide extraordinary evidence to prove your claim.
Anonymous Coward
User ID: 72571617
Norway
07/14/2016 04:36 PM
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Re: The sun is randomly out of position.
...


Prøve it please. This is info was provided by the good Dr V Tepes
 Quoting: Dr Heyerdahl 72577034


By rules of logic, he has to prove what he says is correct. I do not have to prove what he says is wrong. He has provided no such proof.
 Quoting: Anonymous Coward 69340041


Hmm logic like using NASA imagery with time stamps to prove his point? Where's your contradicting evidence?
I'll take Dr V Tepes word over yours anyday.
 Quoting: Dr Heyerdahl 72571617




It isn't the images. It is his interpretation. First off, he starts by assuming that the Earth is rather then allowing the data to speak for itself. It is called affirming the consequent.

The biggest problem is that he doesn't know what a sun synchronous orbit is.

[link to modis.gsfc.nasa.gov]

[link to earthobservatory.nasa.gov]

[link to www.encyclopedia.com]

Understanding a sun synchronous orbit explains his observation completely without resorting to the wobbling Earth garbage.

The northern hemisphere of Earth tilts toward the Sun June/July/August. It tilts away from the Sun in January/February/March. Since the satellite is oriented with the Sun, the Earth will seem to wobble back and forth throughout the year, which is exactly what he is showing. Just the effect of a Sun synchronous orbit.
 Quoting: Anonymous Coward 69340041


Only those images he is referring to are 24 hrs apart. Please pay attention
Anonymous Coward
User ID: 72571617
Norway
07/14/2016 04:38 PM
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Re: The sun is randomly out of position.
Your rules of logic are illogical if they do not apply to yourself.
 Quoting: Anonymous Coward 72571617


That makes zero sense. My claim is nothing has changed. The extraordinary claim is that things have changed so he, and you, have to provide extraordinary evidence to prove your claim.
 Quoting: Anonymous Coward 69340041


You claim it was a fallacy by youtube. Now certainly we can apply your rules of logic to that statement and demand evidence of such claim.
Anonymous Coward
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07/14/2016 04:50 PM
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Re: The sun is randomly out of position.
...


By rules of logic, he has to prove what he says is correct. I do not have to prove what he says is wrong. He has provided no such proof.
 Quoting: Anonymous Coward 69340041


Hmm logic like using NASA imagery with time stamps to prove his point? Where's your contradicting evidence?
I'll take Dr V Tepes word over yours anyday.
 Quoting: Dr Heyerdahl 72571617




It isn't the images. It is his interpretation. First off, he starts by assuming that the Earth is rather then allowing the data to speak for itself. It is called affirming the consequent.

The biggest problem is that he doesn't know what a sun synchronous orbit is.

[link to modis.gsfc.nasa.gov]

[link to earthobservatory.nasa.gov]

[link to www.encyclopedia.com]

Understanding a sun synchronous orbit explains his observation completely without resorting to the wobbling Earth garbage.

The northern hemisphere of Earth tilts toward the Sun June/July/August. It tilts away from the Sun in January/February/March. Since the satellite is oriented with the Sun, the Earth will seem to wobble back and forth throughout the year, which is exactly what he is showing. Just the effect of a Sun synchronous orbit.
 Quoting: Anonymous Coward 69340041


Only those images he is referring to are 24 hrs apart. Please pay attention
 Quoting: Anonymous Coward 72571617



Only one pair. The others are one orbit apart.
Anonymous Coward
User ID: 72571617
Norway
07/15/2016 04:00 AM
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Re: The sun is randomly out of position.
...


Hmm logic like using NASA imagery with time stamps to prove his point? Where's your contradicting evidence?
I'll take Dr V Tepes word over yours anyday.
 Quoting: Dr Heyerdahl 72571617




It isn't the images. It is his interpretation. First off, he starts by assuming that the Earth is rather then allowing the data to speak for itself. It is called affirming the consequent.

The biggest problem is that he doesn't know what a sun synchronous orbit is.

[link to modis.gsfc.nasa.gov]

[link to earthobservatory.nasa.gov]

[link to www.encyclopedia.com]

Understanding a sun synchronous orbit explains his observation completely without resorting to the wobbling Earth garbage.

The northern hemisphere of Earth tilts toward the Sun June/July/August. It tilts away from the Sun in January/February/March. Since the satellite is oriented with the Sun, the Earth will seem to wobble back and forth throughout the year, which is exactly what he is showing. Just the effect of a Sun synchronous orbit.
 Quoting: Anonymous Coward 69340041


Only those images he is referring to are 24 hrs apart. Please pay attention
 Quoting: Anonymous Coward 72571617



Only one pair. The others are one orbit apart.
 Quoting: Anonymous Coward 69340041


Irrelevant
Anonymous Coward
User ID: 69340041
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07/18/2016 11:32 AM
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Re: The sun is randomly out of position.
...




It isn't the images. It is his interpretation. First off, he starts by assuming that the Earth is rather then allowing the data to speak for itself. It is called affirming the consequent.

The biggest problem is that he doesn't know what a sun synchronous orbit is.

[link to modis.gsfc.nasa.gov]

[link to earthobservatory.nasa.gov]

[link to www.encyclopedia.com]

Understanding a sun synchronous orbit explains his observation completely without resorting to the wobbling Earth garbage.

The northern hemisphere of Earth tilts toward the Sun June/July/August. It tilts away from the Sun in January/February/March. Since the satellite is oriented with the Sun, the Earth will seem to wobble back and forth throughout the year, which is exactly what he is showing. Just the effect of a Sun synchronous orbit.
 Quoting: Anonymous Coward 69340041


Only those images he is referring to are 24 hrs apart. Please pay attention
 Quoting: Anonymous Coward 72571617



Only one pair. The others are one orbit apart.
 Quoting: Anonymous Coward 69340041


Irrelevant
 Quoting: Anonymous Coward 72571617



The meaning of my post is completely lost on you, not surprising. You cannot say anything about the "wobble" of the Earth from satellite images if you do not know what sun synchronous means. You have to be able to understand the expect motion or, more correctly, orientation if you do not understand the orbital dynamics. The poster clearly did not understand the orbit so drawing conclusions from an orbit you do not understand results in meaningless drivel.
Anonymous Coward
User ID: 72483145
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07/18/2016 11:40 AM
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Re: The sun is randomly out of position.
This is really irrelevant to the discussion. The point is that basic observation should solve the debate. Since I'm assuming, you can't go back in time... then the very next best thing would be for you to actually pull up historical records and compare and contrast. You know, the basic ground work of science, i.e field work. You know, the hard shit.. and not punching a few keys into your gps controlled telescope.

If you can prove that current models match known observations from the 19th and 20th century, then I will accept the sun is exactly where it should be. And, note: I am not asking for copy and paste hubris. In order to successfully prove your point, I will really be impressed if you actually went out and compared actual historical records, i.e. went to the library and came back to us all. You know... textual evidence.
 Quoting: Anonymous Coward 70216415


K, done.
Here are my measurements of the sun this evening. First, here's a picture of the sun I shot on a tripod with my camera and a Thousand Oaks Type 2+ solar filter:
[link to www.flickr.com (secure)]
It was a bit cloudy, but still a serviceable photo for these purposes. EXIF data intact, the time zone is eastern time, 4 hours behind UT. I left the camera undisturbed for several hours and then took a 1 second exposure without the solar filter:
[link to www.flickr.com (secure)]
Yes, for convenience I was shooting through my window the whole time. Not going for pretty astrophotography here. I then layered the two images together so that the sun's previous position in the image could be directly seen in the second image. I also used dynamic background subtraction to remove the light pollution:
[link to www.flickr.com (secure)]
I astrometrically solved the image here:
[link to nova.astrometry.net]
The astrometry isn't perfect, but again, it's serviceable for our purposes. Note that the resolution of the image is 12 arcseconds per pixel. 20/20 vision is the ability to resolve a spatial separation of 1 minute of arc, 60 arcseconds, so this image is about 5 times higher in resolution than that.

Now, I used my spreadsheet to calculate the expected location and geometric alt/az of the sun using Newcomb's theory:

Input
Year 2016
month 7
day 7
hour (UT) 23
minute 16
second 48
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 25

Solar Coordinates
Apparent Right Ascension at Equinox of date
Hours 7
Minutes 10
Seconds 27
Apparent Declination at Equinox of date
Degrees 22
Minutes 26
Seconds 46

Altitude (degrees) 13.3992166
Azimuth (degrees, 0 North) 288.6105497

[link to dropcanvas.com]

I then converted the geometric altitude and azimuth to J2000 equatorial coordinates at the time of the second photo:

Input
Year 2016
month 7
day 8
hour (UT) 2
minute 2
second 14
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 15

Convert to RA and Dec
Geometric Altitude 13.3992166
Azimuth 288.6105497

RA J2000
9
55
25.28
Dec J2000
22
31
29.9
[link to dropcanvas.com]

Plugging these numbers into the astrometrically solved image shows that the Sun's expected location (the green circle) matches its observed location:

[link to www.flickr.com (secure)]
 Quoting: Dr. Astro


And yes, I made my spreadsheet myself, this isn't just "copy/paste BS." The spreadsheet is based on Newcomb's numbers for calculating the position of the sun, using Jean Meeus' truncated method published decades ago. I used the actual book, from the library.
[link to www.worldcat.org]
You can verify it against Newcomb's own book as well:
[link to www.worldcat.org]
 Quoting: Dr. Astro


This is unrelated, or not, but my family was at a BBQ on the 15th, there was a visible planet, in broad daylight, as it was around 6 pm in Southern Idaho. We couldn't figure out what it was at first, but it didn't move. It was fairly large too, as planets go in the daytime☻. I have looked and found something on Venus being visible durning the daytime but that was a few years ago. Anyone else see this? It was visible toward the SW. I haven't been able to spot it again but I have a lot of trees at my house.
Anonymous Coward
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07/18/2016 03:43 PM
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Re: The sun is randomly out of position.
This is unrelated, or not, but my family was at a BBQ on the 15th, there was a visible planet, in broad daylight, as it was around 6 pm in Southern Idaho. We couldn't figure out what it was at first, but it didn't move. It was fairly large too, as planets go in the daytime☻. I have looked and found something on Venus being visible durning the daytime but that was a few years ago. Anyone else see this? It was visible toward the SW. I haven't been able to spot it again but I have a lot of trees at my house.
 Quoting: Anonymous Coward 72483145


Here is a very simple to use planetarium program.

[link to neave.com]

Just enter your location on the map and you can change the date and time to see what is in the sky at that time.

Good luck.
Dr. AstroModerator
Senior Forum Moderator

User ID: 4211721
United States
07/20/2016 03:46 PM

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Re: The sun is randomly out of position.
This is really irrelevant to the discussion. The point is that basic observation should solve the debate. Since I'm assuming, you can't go back in time... then the very next best thing would be for you to actually pull up historical records and compare and contrast. You know, the basic ground work of science, i.e field work. You know, the hard shit.. and not punching a few keys into your gps controlled telescope.

If you can prove that current models match known observations from the 19th and 20th century, then I will accept the sun is exactly where it should be. And, note: I am not asking for copy and paste hubris. In order to successfully prove your point, I will really be impressed if you actually went out and compared actual historical records, i.e. went to the library and came back to us all. You know... textual evidence.
 Quoting: Anonymous Coward 70216415


K, done.
Here are my measurements of the sun this evening. First, here's a picture of the sun I shot on a tripod with my camera and a Thousand Oaks Type 2+ solar filter:
[link to www.flickr.com (secure)]
It was a bit cloudy, but still a serviceable photo for these purposes. EXIF data intact, the time zone is eastern time, 4 hours behind UT. I left the camera undisturbed for several hours and then took a 1 second exposure without the solar filter:
[link to www.flickr.com (secure)]
Yes, for convenience I was shooting through my window the whole time. Not going for pretty astrophotography here. I then layered the two images together so that the sun's previous position in the image could be directly seen in the second image. I also used dynamic background subtraction to remove the light pollution:
[link to www.flickr.com (secure)]
I astrometrically solved the image here:
[link to nova.astrometry.net]
The astrometry isn't perfect, but again, it's serviceable for our purposes. Note that the resolution of the image is 12 arcseconds per pixel. 20/20 vision is the ability to resolve a spatial separation of 1 minute of arc, 60 arcseconds, so this image is about 5 times higher in resolution than that.

Now, I used my spreadsheet to calculate the expected location and geometric alt/az of the sun using Newcomb's theory:

Input
Year 2016
month 7
day 7
hour (UT) 23
minute 16
second 48
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 25

Solar Coordinates
Apparent Right Ascension at Equinox of date
Hours 7
Minutes 10
Seconds 27
Apparent Declination at Equinox of date
Degrees 22
Minutes 26
Seconds 46

Altitude (degrees) 13.3992166
Azimuth (degrees, 0 North) 288.6105497

[link to dropcanvas.com]

I then converted the geometric altitude and azimuth to J2000 equatorial coordinates at the time of the second photo:

Input
Year 2016
month 7
day 8
hour (UT) 2
minute 2
second 14
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 15

Convert to RA and Dec
Geometric Altitude 13.3992166
Azimuth 288.6105497

RA J2000
9
55
25.28
Dec J2000
22
31
29.9
[link to dropcanvas.com]

Plugging these numbers into the astrometrically solved image shows that the Sun's expected location (the green circle) matches its observed location:

[link to www.flickr.com (secure)]
 Quoting: Dr. Astro


And yes, I made my spreadsheet myself, this isn't just "copy/paste BS." The spreadsheet is based on Newcomb's numbers for calculating the position of the sun, using Jean Meeus' truncated method published decades ago. I used the actual book, from the library.
[link to www.worldcat.org]
You can verify it against Newcomb's own book as well:
[link to www.worldcat.org]
 Quoting: Dr. Astro


Wow I am impressed. You did exactly what the AC ask for. Even before he ask incredible. He must be impressed out of his boots.
 Quoting: Anonymous Coward 72571617


He said what he said precisely because he knows that's exactly what I already did. He's a troll. He gets off on contradicting me, even when I'm providing exactly what he's asking for. I guess he got bored with your thread. I was expecting him to come on and offer some lame ass excuse for why what I was providing was not appropriate even though it's exactly what he's describing.
astrobanner2
74444

User ID: 74444
United States
07/20/2016 06:11 PM
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Report Copyright Violation
Re: The sun is randomly out of position.
This is really irrelevant to the discussion. The point is that basic observation should solve the debate. Since I'm assuming, you can't go back in time... then the very next best thing would be for you to actually pull up historical records and compare and contrast. You know, the basic ground work of science, i.e field work. You know, the hard shit.. and not punching a few keys into your gps controlled telescope.

If you can prove that current models match known observations from the 19th and 20th century, then I will accept the sun is exactly where it should be. And, note: I am not asking for copy and paste hubris. In order to successfully prove your point, I will really be impressed if you actually went out and compared actual historical records, i.e. went to the library and came back to us all. You know... textual evidence.
 Quoting: Anonymous Coward 70216415


K, done.
Here are my measurements of the sun this evening. First, here's a picture of the sun I shot on a tripod with my camera and a Thousand Oaks Type 2+ solar filter:
[link to www.flickr.com (secure)]
It was a bit cloudy, but still a serviceable photo for these purposes. EXIF data intact, the time zone is eastern time, 4 hours behind UT. I left the camera undisturbed for several hours and then took a 1 second exposure without the solar filter:
[link to www.flickr.com (secure)]
Yes, for convenience I was shooting through my window the whole time. Not going for pretty astrophotography here. I then layered the two images together so that the sun's previous position in the image could be directly seen in the second image. I also used dynamic background subtraction to remove the light pollution:
[link to www.flickr.com (secure)]
I astrometrically solved the image here:
[link to nova.astrometry.net]
The astrometry isn't perfect, but again, it's serviceable for our purposes. Note that the resolution of the image is 12 arcseconds per pixel. 20/20 vision is the ability to resolve a spatial separation of 1 minute of arc, 60 arcseconds, so this image is about 5 times higher in resolution than that.

Now, I used my spreadsheet to calculate the expected location and geometric alt/az of the sun using Newcomb's theory:

Input
Year 2016
month 7
day 7
hour (UT) 23
minute 16
second 48
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 25

Solar Coordinates
Apparent Right Ascension at Equinox of date
Hours 7
Minutes 10
Seconds 27
Apparent Declination at Equinox of date
Degrees 22
Minutes 26
Seconds 46

Altitude (degrees) 13.3992166
Azimuth (degrees, 0 North) 288.6105497

[link to dropcanvas.com]

I then converted the geometric altitude and azimuth to J2000 equatorial coordinates at the time of the second photo:

Input
Year 2016
month 7
day 8
hour (UT) 2
minute 2
second 14
W Longitude (Decimal deg) 82
Latitude (Decimal deg) (N+, S-) 27
Height above sea level (meters) 0
Pressure (mb) 0
Temperature (Centigrade) 15

Convert to RA and Dec
Geometric Altitude 13.3992166
Azimuth 288.6105497

RA J2000
9
55
25.28
Dec J2000
22
31
29.9
[link to dropcanvas.com]

Plugging these numbers into the astrometrically solved image shows that the Sun's expected location (the green circle) matches its observed location:

[link to www.flickr.com (secure)]
 Quoting: Dr. Astro


And yes, I made my spreadsheet myself, this isn't just "copy/paste BS." The spreadsheet is based on Newcomb's numbers for calculating the position of the sun, using Jean Meeus' truncated method published decades ago. I used the actual book, from the library.
[link to www.worldcat.org]
You can verify it against Newcomb's own book as well:
[link to www.worldcat.org]
 Quoting: Dr. Astro


415 never replied?

Shocking.





GLP