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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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AR2748 in H alpha – 3rd September

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LTHB
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AR2748 in H alpha – 3rd September

Post by LTHB » Sun Sep 08, 2019 2:03 pm

Another capture of AR2748 in H alpha from last tuesday, probably my last image for this year as fall is coming with cloudy skies for months, as is usual in northern Germany.

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Full resolution here: https://live.staticflickr.com/65535/486 ... 9605_o.jpg

Regards,

Frank

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Re: AR2748 in H alpha – 3rd September

Post by marktownley » Sun Sep 08, 2019 2:30 pm

That's a nice result Frank! I do hope you get more viewing opportunities though.
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MAURITS
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Re: AR2748 in H alpha – 3rd September

Post by MAURITS » Sun Sep 08, 2019 2:31 pm

Nice capture Frank.
Regards,
Maurits

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Re: AR2748 in H alpha – 3rd September

Post by Starry Jack » Sun Sep 08, 2019 7:18 pm

Echo Mark....clear skies for you!!
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Re: AR2748 in H alpha – 3rd September

Post by eroel » Mon Sep 09, 2019 1:35 am

Frank, a nice shot.
Eric.

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