Sun FD in H-Alpha - catching up on the image processing.

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arnedanielsen
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Sun FD in H-Alpha - catching up on the image processing.

Post by arnedanielsen »

Dear all,

A fair amount of good weather have allowed me to image the Sun quite regularly during lunch-break from my home-office. I have, however, not have had time to keep up with the image-processing - until now.

Here's a collection of images from the last couple of weeks. All the images have been taking with the regular setup that I've been using lately (Takahashi Sky-90 II, SolarMax 90 and BF15 filter, Baader 35nm H-Alpha filter, 2x Cemax Barlow and ASI ZWO 1600MM PRO camera mounted on a Paramount ME mount).

I have changed my image-processing flow though. All images are as before from just one recording, but while I earlier selected the disc and processed the disc and the proms independently I'm now mainly using Shadows/Highlights as suggested by Alexandra in an comment to an earlier posting. I think the new processing brings out the proms better, reduces the limb darkening and makes the transition between disc and proms more natural - maybe at the cost of a little less contrast on the disc.

Please let me know what you think.


Sun in H-Alpha 15th of April 2021
Sun90FD_140018_Ha_20210415_ZWO ASI1600MM Pro_lapl6_ap8473_Sharpened_Contrast_resize.jpg
Sun90FD_140018_Ha_20210415_ZWO ASI1600MM Pro_lapl6_ap8473_Sharpened_Contrast_resize.jpg (194.9 KiB) Viewed 167 times
Sun in H-Alpha 16th of April 2021
Sun90FD_142447_Ha_20210416_ZWO ASI1600MM Pro_lapl6_ap8483_Sharpened_Contrast_resize.jpg
Sun90FD_142447_Ha_20210416_ZWO ASI1600MM Pro_lapl6_ap8483_Sharpened_Contrast_resize.jpg (196.38 KiB) Viewed 167 times
Sun in H-Alpha 17th of April 2021
Sun90FD_115648_Ha_20210417_ZWO ASI1600MM Pro_lapl6_ap8495_Sharpened_Contrast_resize.jpg
Sun90FD_115648_Ha_20210417_ZWO ASI1600MM Pro_lapl6_ap8495_Sharpened_Contrast_resize.jpg (202.22 KiB) Viewed 167 times
Sun in H-Alpha 18th of April 2021
Sun90FD_120806_Ha_20210418_ZWO ASI1600MM Pro_lapl6_ap8494_Sharpened_Contrast_resize.jpg
Sun90FD_120806_Ha_20210418_ZWO ASI1600MM Pro_lapl6_ap8494_Sharpened_Contrast_resize.jpg (194.14 KiB) Viewed 167 times
Sun in H-Alpha 19th of April 2021
Sun90FD_114153_Ha_20210419_ZWO ASI1600MM Pro_lapl6_ap8471_Sharpened_Contrast_resize.jpg
Sun90FD_114153_Ha_20210419_ZWO ASI1600MM Pro_lapl6_ap8471_Sharpened_Contrast_resize.jpg (193.86 KiB) Viewed 167 times
Sun in H-Alpha 20th of April 2021
Sun90FD_115453_Ha_20210420_ZWO ASI1600MM Pro_lapl6_ap4938_Sharpened_Contrast_resize.jpg
Sun90FD_115453_Ha_20210420_ZWO ASI1600MM Pro_lapl6_ap4938_Sharpened_Contrast_resize.jpg (199.04 KiB) Viewed 167 times
Sun in H-Alpha 22th of April 2021
Sun90FD_112711_Ha_20210422_ZWO ASI1600MM Pro_lapl6_ap4923_Sharpened_Contrast_resize.jpg
Sun90FD_112711_Ha_20210422_ZWO ASI1600MM Pro_lapl6_ap4923_Sharpened_Contrast_resize.jpg (193.68 KiB) Viewed 167 times
Sun in H-Alpha 23th of April 2021
Sun90FD_114831_Ha_20210423_ZWO ASI1600MM Pro_lapl6_ap4948_Sharpened_Contrast_resize.jpg
Sun90FD_114831_Ha_20210423_ZWO ASI1600MM Pro_lapl6_ap4948_Sharpened_Contrast_resize.jpg (198.56 KiB) Viewed 167 times
Sun in H-Alpha 26th of April 2021
Sun90FD_114518_Ha_20210426_ZWO ASI1600MM Pro_lapl6_ap4945_Sharpened_Contrast_resize.jpg
Sun90FD_114518_Ha_20210426_ZWO ASI1600MM Pro_lapl6_ap4945_Sharpened_Contrast_resize.jpg (174.13 KiB) Viewed 167 times
Sun in H-Alpha 30th of April 2021
Sun90FD_140437_Ha_20210430_ZWO ASI1600MM Pro_lapl6_ap4907_Sharpened_Contrast_resize.jpg
Sun90FD_140437_Ha_20210430_ZWO ASI1600MM Pro_lapl6_ap4907_Sharpened_Contrast_resize.jpg (203.72 KiB) Viewed 167 times
Sun in H-Alpha 1st of May 2021
Sun90FD_112814_Ha_20210501_ZWO ASI1600MM Pro_lapl6_ap4912_Sharpened_Contrast_resize.jpg
Sun90FD_112814_Ha_20210501_ZWO ASI1600MM Pro_lapl6_ap4912_Sharpened_Contrast_resize.jpg (202.98 KiB) Viewed 167 times
Sun in H-Alpha 7th of May 2021
Sun90FD_144620_Ha_20210507_ZWO ASI1600MM Pro_lapl6_ap4893_Sharpened_Contrast_resize.jpg
Sun90FD_144620_Ha_20210507_ZWO ASI1600MM Pro_lapl6_ap4893_Sharpened_Contrast_resize.jpg (334.12 KiB) Viewed 167 times

Best regards,
Arne


Best regards,
Arne
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Re: Sun FD in H-Alpha - catching up on the image processing.

Post by eroel »

Arne:
Very good FD´s.
As you say, we do change workflows once in a while to try to get some better results.
Best regards.
Eric.


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Re: Sun FD in H-Alpha - catching up on the image processing.

Post by Montana »

These are lovely Arne :hamster: :bow

You have to do what you feel most comfortable doing in processing, what you think looks good and what you think shows what you want to see :)

I love them :)

Alexandra


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Re: Sun FD in H-Alpha - catching up on the image processing.

Post by marktownley »

A very nice run of full disks there Arne!


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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: Sun FD in H-Alpha - catching up on the image processing.

Post by arnedanielsen »

Thank you very much for your kind words Eric, Alexandra and Mark.

All the best,
Arne


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