Sun in H-Alpha and CaK 21st of July 2021

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arnedanielsen
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Sun in H-Alpha and CaK 21st of July 2021

Post by arnedanielsen »

Dear friends,

Please find attached some FD images for the Sun in H-Alpha and CaK as well as some close-up images in H-Alpha.

All images are from July 21st in the afternoon under less than ideal seeing.

FD image in H-Alpha using a Takahashi Sky-90II with Coronado 90mm/BF15, Coronado 2x CeMax and ASI 1600mm PRO.
Sun90FD_131942_Ha_(Coronado_90mm_BF15)_20210721_ZWO ASI1600MM Pro_lapl4_ap5943_Sharpened_Contrast_resize.jpg
Sun90FD_131942_Ha_(Coronado_90mm_BF15)_20210721_ZWO ASI1600MM Pro_lapl4_ap5943_Sharpened_Contrast_resize.jpg (340.51 KiB) Viewed 274 times
Sun FD in H-Alpha 21st of July 2021



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_130639_CaK_(3934nm)_20210721_ZWO ASI183MM_lapl4_ap9914_out_Contrast_resize.jpg
SunCaK60_130639_CaK_(3934nm)_20210721_ZWO ASI183MM_lapl4_ap9914_out_Contrast_resize.jpg (294.6 KiB) Viewed 274 times
Sun FD in CaK 21st of July 2021

SunCaK60_130639_CaK_(3934nm)_20210721_ZWO ASI183MM_lapl4_ap9914_out_Contrast_Colorized_resize.jpg
SunCaK60_130639_CaK_(3934nm)_20210721_ZWO ASI183MM_lapl4_ap9914_out_Contrast_Colorized_resize.jpg (324.83 KiB) Viewed 274 times
Sun FD in CaK 21st of July 2021 - colorized



Close-up images in H-Alpha using an Explore Scientific AR152, Baader 2" 35nm H-Alpha (as ERF), Daystar Quark H-Alpha Chromosphere and ASI ZWO 174mm camera.
Sun_135427_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap4155_out_Contrast_resize.jpg
Sun_135427_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap4155_out_Contrast_resize.jpg (233.7 KiB) Viewed 274 times
Sun in H-Alpha 21st of July 2021 - AR2847 and prominence

Sun_135630_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap4020_out_Contrast_resize.jpg
Sun_135630_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap4020_out_Contrast_resize.jpg (226.73 KiB) Viewed 274 times
Sun in H-Alpha 21st of July 2021 - AR2846 and prominences

Sun_140402_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap3311_out_Contrast_resize.jpg
Sun_140402_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap3311_out_Contrast_resize.jpg (206.31 KiB) Viewed 274 times
Sun in H-Alpha 21st of July 2021 - AR2847 and prominence (rotated 90 degrees clockwise)

Sun_142520_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap5077_out_Contrast_resize.jpg
Sun_142520_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap5077_out_Contrast_resize.jpg (219.03 KiB) Viewed 274 times
Sun in H-Alpha 21st of July 2021 - AR2842 and prominence

Sun_161052_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap4075_out_Contrast_resize.jpg
Sun_161052_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap4075_out_Contrast_resize.jpg (228.53 KiB) Viewed 274 times
Sun in H-Alpha 21st of July 2021 - AR2847 and prominences

Sun_161824_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap3812_out_Contrast_resize.jpg
Sun_161824_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap3812_out_Contrast_resize.jpg (213.27 KiB) Viewed 274 times
Sun in H-Alpha 21st of July 2021 - AR2847 and prominence

Sun_170749_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap5464_out_Contrast_resize.jpg
Sun_170749_Ha_(DayStar_Quark_-_Chromosphere)_20210721_ZWO ASI174MM_lapl4_ap5464_out_Contrast_resize.jpg (220.75 KiB) Viewed 274 times
Sun in H-Alpha 21st of July 2021 - AR2845



As usual click on links to view full size images.

Thanks for looking,
Arne


Best regards,
Arne
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Re: Sun in H-Alpha and CaK 21st of July 2021

Post by marktownley »

A nice set of images Arne, like the limb activity in Ha!


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Re: Sun in H-Alpha and CaK 21st of July 2021

Post by Montana »

Wow!! amazing limb shots :bow :hamster: a lot has changed in just 8 days!

Alexandra


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Re: Sun in H-Alpha and CaK 21st of July 2021

Post by arnedanielsen »

Thanks you very much, Mark and Alexandra!

Best regards,
Arne


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Re: Sun in H-Alpha and CaK 21st of July 2021

Post by LeoD »

Great shots, Arne!
Nice limb structures in hi-res, I'll pay more attention to look for it around a limb next time :)
Leo


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Re: Sun in H-Alpha and CaK 21st of July 2021

Post by arnedanielsen »

Thank you very much Leo.

Looking forward to seeing your future limb shots!

Best regards,
Arne


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