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Analemma with the Erechtheion ... #4/11
Dear Friends,
I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
#2
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Analemma with the Erechtheion ... #4/11
What about APOD this time ?
Thierry http://www.astrosurf.com/lombry/analemma.htm http://www.astrosurf.com/lombry/analemme.htm "Anthony Ayiomamitis" wrote in message ... Dear Friends, I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
#3
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Analemma with the Erechtheion ... #4/11
What about APOD this time ?
Thierry http://www.astrosurf.com/lombry/analemma.htm http://www.astrosurf.com/lombry/analemme.htm "Anthony Ayiomamitis" wrote in message ... Dear Friends, I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
#4
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Analemma with the Erechtheion ... #4/11
What about APOD this time ?
Thierry http://www.astrosurf.com/lombry/analemma.htm http://www.astrosurf.com/lombry/analemme.htm "Anthony Ayiomamitis" wrote in message ... Dear Friends, I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
#5
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Analemma with the Erechtheion ... #4/11
What about APOD this time ?
Thierry http://www.astrosurf.com/lombry/analemma.htm http://www.astrosurf.com/lombry/analemme.htm "Anthony Ayiomamitis" wrote in message ... Dear Friends, I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
#6
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Analemma with the Erechtheion ... #4/11
Wow! Another masterpiece, Anthony! You're really reaping the rewards
of years of trial and error and frustrations. The library of analemmas you're creating is not likely to be surpassed for a very long time, if ever. Mike Simmons Anthony Ayiomamitis wrote: Dear Friends, I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
#7
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Analemma with the Erechtheion ... #4/11
Wow! Another masterpiece, Anthony! You're really reaping the rewards
of years of trial and error and frustrations. The library of analemmas you're creating is not likely to be surpassed for a very long time, if ever. Mike Simmons Anthony Ayiomamitis wrote: Dear Friends, I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
#8
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Analemma with the Erechtheion ... #4/11
Wow! Another masterpiece, Anthony! You're really reaping the rewards
of years of trial and error and frustrations. The library of analemmas you're creating is not likely to be surpassed for a very long time, if ever. Mike Simmons Anthony Ayiomamitis wrote: Dear Friends, I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
#9
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Analemma with the Erechtheion ... #4/11
Wow! Another masterpiece, Anthony! You're really reaping the rewards
of years of trial and error and frustrations. The library of analemmas you're creating is not likely to be surpassed for a very long time, if ever. Mike Simmons Anthony Ayiomamitis wrote: Dear Friends, I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
#10
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Analemma with the Erechtheion ... #4/11
"Mike Simmons" wrote in message ... Wow! Another masterpiece, Anthony! You're really reaping the rewards of years of trial and error and frustrations. Hi Mike, and all the more than the first time (early 2003) APOD didn't published these analemmas.... Thierry http://www.astrosurf.com/lombry/analemma.htm The library of analemmas you're creating is not likely to be surpassed for a very long time, if ever. Mike Simmons Anthony Ayiomamitis wrote: Dear Friends, I am delighted to be in a position to present yet another analemma which represents the motion of the sun between January 7th and December 21st, 2003 and as observed and imaged precisely at 15:00:00 LMT (UT+2) which also required a third annual effort to complete. What is interesting is that the angle of this analemma is virtually identical to the angle for the analemma one hour later. I checked the ephemeris for these two analemmas (15:00:00 and 16:00:00 UT+2) and the upper loops vary by about 1.5% in their slope whereas the bottom loops vary by about 17%. One obvious feature for this new analemma is that the two halves of the bottom loop exhibit a differential curvature near the apex which is similar to that produced by computer simulations. Anyway, a photo is worth a thousand words and, to this end, I kindly direct you to http://www.perseus.gr/Astro-Solar-Analemma-130000.htm .... Next week we will be taking a look at some new mid-morning analemmas. Best wishes and clear skies to all. Anthony. |
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