Sun in H-Alpha and CaK 25th of August 2021

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arnedanielsen
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Sun in H-Alpha and CaK 25th of August 2021

Post by arnedanielsen »

Dear friends,

It cleared just long enough in the afternoon for a set of FD in H-Alpha and CaK.

FD image in H-Alpha using a Takahashi Sky-90II with Coronado 90mm/BF15, Coronado 2x CeMax and ASI 1600mm PRO.
Sun90FD_143351_Ha_(Coronado_90mm_BF15)_20210825_ZWO ASI1600MM Pro_lapl4_ap5460_Sharpened_Contrast_resize.jpg
Sun90FD_143351_Ha_(Coronado_90mm_BF15)_20210825_ZWO ASI1600MM Pro_lapl4_ap5460_Sharpened_Contrast_resize.jpg (410.39 KiB) Viewed 277 times
Sun FD in H-Alpha 25th of August 2021


Huge faint prom on the SE limb
Sun90FD_143715_Ha_(Coronado_90mm_BF15)_20210825_ZWO ASI1600MM Pro_lapl4_ap377_Sharpened_Contrast_resize.jpg
Sun90FD_143715_Ha_(Coronado_90mm_BF15)_20210825_ZWO ASI1600MM Pro_lapl4_ap377_Sharpened_Contrast_resize.jpg (72.29 KiB) Viewed 277 times
Sun FD in H-Alpha 25th of August 2021 - prominence inverse



FD image in CaK using a William Optics ZenithStar 61II stopped down to 46mm, Lunt CaK 1200 module, Coronado 2x CeMax and ASI 183mm camera.
SunCaK60_142055_CaK_(3934nm)_20210825_ZWO ASI183MM_lapl4_ap7186_out_Contrast_resize.jpg
SunCaK60_142055_CaK_(3934nm)_20210825_ZWO ASI183MM_lapl4_ap7186_out_Contrast_resize.jpg (242.76 KiB) Viewed 277 times
Sun FD in CaK 25th of August 2021

SunCaK60_142055_CaK_(3934nm)_20210825_ZWO ASI183MM_lapl4_ap7186_out_Contrast_Colorized_resize.jpg
SunCaK60_142055_CaK_(3934nm)_20210825_ZWO ASI183MM_lapl4_ap7186_out_Contrast_Colorized_resize.jpg (260.35 KiB) Viewed 277 times
Sun FD in CaK 25th of August 2021 - colorized



As usual click on links to view full size images.

Thanks and best regards,
Arne


Best regards,
Arne
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Re: Sun in H-Alpha and CaK 25th of August 2021

Post by Montana »

WOW!! look at that huge prom!! and the AR in the SE is coming along at amazing speed :bow :hamster:
Alexandra


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Re: Sun in H-Alpha and CaK 25th of August 2021

Post by MAURITS »

Nice to see Arne.


Regards,
Maurits

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Re: Sun in H-Alpha and CaK 25th of August 2021

Post by EGRAY_OBSERVATORY »

Thanks Arne for sharing the images and with both the far north and far south proms is quite unusual.

Cheers
Terry


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Re: Sun in H-Alpha and CaK 25th of August 2021

Post by arnedanielsen »

Thanks for the kind comments, Alexandra, Maurits and Terry.

Best regards,
Arne


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Re: Sun in H-Alpha and CaK 25th of August 2021

Post by Ivan »

Nice work, Arne. The second photo is very original.

Ivan


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Re: Sun in H-Alpha and CaK 25th of August 2021

Post by arnedanielsen »

Thank you very much, Ivan!

Best regards,
Arne


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