Sun in H-Alpha and CaK 28th of June 2021

[arnedanielsen]

Dear all,

Here are some images from the 28th.

FD image in H-Alpha using the Takahashi Sky-90II with Coronado 90mm/BF15, Coronado 2x CeMax and ASI 1600mm PRO

Sun90FD_155359_Ha_(Coronado_90mm_BF15)_20210628_ZWO ASI1600MM Pro_lapl4_ap6031_Sharpened_Contrast_resize.jpg (471.91 KiB) Viewed 219 times

Sun FD in H-Alpha 28th of June 2021



FD image in CaK using William Optics ZenithStar 61II stopped down to 46mm, Lunt Cak 1200 module and ASI 178mm camera

SunCaK60_160226_CaK_(3934nm)_20210628_ZWO ASI178MM_lapl4_ap2782_Sharpened_Contrast_resize.jpg (249.81 KiB) Viewed 219 times

Sun FD in CaK 28th of June 2021

SunCaK60_160226_CaK_(3934nm)_20210628_ZWO ASI178MM_lapl4_ap2782_Sharpened_Contrast_Colorized_resize.jpg (274.12 KiB) Viewed 219 times

Sun FD in CaK 28th of June 2021 - colorized



CaK imaging using William Optics ZenithStar 61II stopped down to 46mm, Lunt Cak 1200 module, PowerMate 2,5x and ASI 178mm camera

SunCaK60_161152_CaK_(3934nm)_20210628_ZWO ASI178MM_lapl4_ap8993_stitch_Sharpened_Contrast_resize.jpg (268.34 KiB) Viewed 219 times

Sun in CaK 28th of June 2021

SunCaK60_161152_CaK_(3934nm)_20210628_ZWO ASI178MM_lapl4_ap8993_stitch_Sharpened_Contrast_Colorized_resize.jpg (290.34 KiB) Viewed 219 times

Sun in CaK 28th of June 2021 - colorized


Click on the links to see full size images.

Thanks for looking,
Arne

[Montana]

Looks like you are really enjoying CaK, these are cracking images

Alexandra

[MAURITS]

Nice to see Arne, here always clouds and rain.

[Stardust5858]

Great captures Arne, love the CaK. Thanks for sharing.

[arnedanielsen]

Thank you very much, Alexandra, Maurits and Ella, for your kind comments.

Alexandra: CaK is fun and after following Marks suggestion to stop-down the aperture I find it quite easy to get consistent results. The FD images are a bit undersampled, but I think the mosaics with 2,5x barlow (900mm focal length) turns out quite good. I'm looking into getting a new camera where I can get FD images with the same resolution.

Maurits: It' been a good period with lots of clear skies (at least patches) and combined with home office (due to Covid) I've been able to do more solar image this year than ever before.

Best regards,
Arne