Sun FD in H-Alpha 30th of March 2021

[arnedanielsen]

Dear all,

Here's a FD image of the Sun in H-Alpha from March 30th. Not much activity on the disc, but a nice large prominence.

Sun90FD_100755_Ha_20210330_ZWO ASI1600MM Pro_lapl6_ap2116_Sharpened_Contrast_FlattenedCCDStack_resize.jpg (218.33 KiB) Viewed 71 times

Full size version

Equipment used for this image was a Takahashi Sky-90 II with SolarMax 90 and BF15 filter, Baader 35nm H-Alpha filter, 2x Cemax Barlow and ASI ZWO 1600MM PRO camera. Everything mounted on a Paramount ME mount.
Stack of the best 60% (805of 1342) images captured with an exposure time of 1.4ms, gain 0, HighSpeed=On and 22fps. Stacking done in Autostakkert 3, sharpening in AstraImage and contrast stretching in Adobe PhotoShop.

Best regards,
Arne

[marktownley]

Nice disk Arne!

[ffellah]

Very well done Arne

Franco

[EGRAY_OBSERVATORY]

Thanks Arne for your well-nice disk and the prom too.

Terry

[MAURITS]

Nice FD Arne.

[arnedanielsen]

Thank you very much, Mark, Franco, Terry and Maurits!

Best regards,
Arne

[Stardust5858]

Well done Arne, I haven't processed my images from the end of March yet too so no idea what I've got. Thanks for sharing.