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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's September 12th

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Astrophil
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FD's September 12th

Post by Astrophil » Sat Sep 14, 2019 1:49 am

I haven't seen many images from the 12th. Maybe because there was not much to see. I was out there still trying to fine tune the LS80.
Here are a couple different images with different processing. You didn't miss much that day.

Phil
20190912_092502_acm.jpg
20190912_092502_acm.jpg (461.68 KiB) Viewed 476 times
20190912_092502_inv.jpg
20190912_092502_inv.jpg (649.58 KiB) Viewed 476 times
20190912_092544_combo_cm.jpg
20190912_092544_combo_cm.jpg (583.83 KiB) Viewed 476 times
20190912_092544_combo_c.jpg
20190912_092544_combo_c.jpg (772.68 KiB) Viewed 476 times

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MalVeauX
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Re: FD's September 12th

Post by MalVeauX » Sat Sep 14, 2019 2:12 am

Lovely discs Phil!

Very best,

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Re: FD's September 12th

Post by marktownley » Sat Sep 14, 2019 6:45 am

They're excellent disks Phil! Hoping to get a few images myself this morning if the weather holds...
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MAURITS
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Re: FD's September 12th

Post by MAURITS » Sat Sep 14, 2019 7:45 am

Nice to see these disks Phil, better than nothing.
Regards,
Maurits

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Re: FD's September 12th

Post by ffellah » Sat Sep 14, 2019 1:27 pm

These are great and very uniform, Phil. Well done !

Franco

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Re: FD's September 12th

Post by Carbon60 » Sat Sep 14, 2019 4:03 pm

Looking good there, Phil. It looks like you've nailed getting on-band over the entire disk. Nice.

Stu.
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Re: FD's September 12th

Post by MapleRidge » Mon Sep 16, 2019 12:59 am

Superb FD images Phil :bow

As Stu says, the disk is very even...well tuned!!!

Brian
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Re: FD's September 12th

Post by DeepSolar64 » Mon Sep 16, 2019 1:14 am

Very nice!
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Astrophil
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Re: FD's September 12th

Post by Astrophil » Mon Sep 16, 2019 2:20 am

Thank you kind gentlemen. I am sincerely trying to improve my imaging techniques but as a budding perfectionist, I keep seeing room for improvement. ;-)

Phil

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Re: FD's September 12th

Post by yltansg » Mon Sep 16, 2019 7:53 am

Excellent captures, Phil.

We have 110 psi haze over here. Hoping imaging can resume when the plantation fires in Indonesia are under control.

Alfred

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