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Solar Analemma. This outstanding image from Alexandra Hart taken over a period of 4 years charts the midday position of the sun in the sky throughout the year. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of Earth's axis of rotation. The east–west component results from the nonuniform rate of change of the Sun's right ascension, governed by combined effects of Earth's axial tilt and orbital eccentricity.

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FD - Ha on 9/2/19

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marios i.
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FD - Ha on 9/2/19

Post by marios i. » Sat Feb 09, 2019 11:12 am

Kaleimera,
Beautiful prominences today at 09:00 o'clock in the morning.

Coronado 40mmDS PST at 44X

Thanks for looking
Mario's
9 2 19 Ha .jpg
9 2 19 Ha .jpg (4.75 MiB) Viewed 781 times

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Re: FD - Ha on 9/2/19

Post by ffellah » Sat Feb 09, 2019 12:54 pm

Kaleimera Marios: a beautiful portrait of our star...

Franco

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Re: FD - Ha on 9/2/19

Post by eroel » Sat Feb 09, 2019 2:37 pm

Marios, beautiful sketch.
Regards,
Eric.

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Re: FD - Ha on 9/2/19

Post by MapleRidge » Sat Feb 09, 2019 6:44 pm

Superb sketch Marois...well done :bow

Brian
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marios i.
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Re: FD - Ha on 9/2/19

Post by marios i. » Sun Feb 10, 2019 5:37 am

Hello Franco,Brian, Eric,and thank you so much for the friendly comments!

Marios

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Re: FD - Ha on 9/2/19

Post by marktownley » Sun Feb 10, 2019 8:07 am

Love the sketches Marios
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http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

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Re: FD - Ha on 9/2/19

Post by marios i. » Sun Feb 10, 2019 12:38 pm

Thank you Mark!

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Re: FD - Ha on 9/2/19

Post by Carbon60 » Sun Feb 10, 2019 6:34 pm

Excellent sketch, Marion.

Stu.
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Re: FD - Ha on 9/2/19

Post by MalVeauX » Sun Feb 10, 2019 8:40 pm

Great sketch! Very cool!

Very best,

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Re: FD - Ha on 9/2/19

Post by MAURITS » Sun Feb 10, 2019 8:56 pm

Super sketch Mario's ...
Regards,
Maurits

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Re: FD - Ha on 9/2/19

Post by David_The_Bears_Fan » Sun Feb 10, 2019 9:21 pm

Looks almost photographic, great sketch.
David

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Re: FD - Ha on 9/2/19

Post by Montana » Mon Feb 11, 2019 10:08 am

What a delight to see :hamster: :bow How long does it take to create your sketch? I guess it is quicker in solar minimum.

Alexandra

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Re: FD - Ha on 9/2/19

Post by marios i. » Mon Feb 11, 2019 4:23 pm

Hello Alexandra (it takes about one hour +- ), David, Stu, Marty, Maurits, and thank you for great feedback.

All the Best
Marios

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