Sun in Ha and Cak - 4 June 2021

Photos, sketches and other images by SPA members

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smerral
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Location: Caithness
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Sun in Ha and Cak - 4 June 2021

Post by smerral »

Cak done with the Altair Astro 60 EDF stopped down to 40mm and the Lunt CaK B600. DMK31 camera.
Ha is a 7 pane mosaic done with the double stacked Coronada PST and Altair GPcamV2 mono.
Seeing was not great, especially for the CaK.

Image

Image
Last edited by smerral on Fri Jun 04, 2021 6:36 pm, edited 1 time in total.
BRIAN
Celestron Nexstar 8SE, Ioptron CEM 25P mount
Altair Astro 102 ED refractor with Lunt B600 CaK diagonal
Coronado PST DS, Daystar Quark
ZWO ASI120MM camera, Canon 1000D (astro modified), Starlight Express SXV H9-C.
Gallery: http://www.astrobin.com/users/smerral/
brian livesey
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Location: Lancashire
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Re: Sun in Ha in Cak - 4 June 2021

Post by brian livesey »

Nice images Brian. I haven't viewed the Sun today, but it looked quite active the other day. I prefer H-a to white light viewing, except when there are masses of sunspots.
I use the PST stacked with a Lunt LS50f. Lunt claims that its etalons are incompatible with other makes, but I'd take that claim with a pinch of salt. : :wink:
brian
jeff.stevens
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Re: Sun in Ha in Cak - 4 June 2021

Post by jeff.stevens »

Such lovely detail. That beautiful granularity really gives me the impression of an unimaginably hot, turbulent surface. I might go and get my sun filter and scope out. The sun is out.

Best wishes, Jeff.
jeff.stevens
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Re: Sun in Ha in Cak - 4 June 2021

Post by jeff.stevens »

Just been out to view AR2829 and 2827 (5pm 4th June 2021), using my Baader solar filter and 60mm refractor. The seeing was poor, and I struggled to get a crystal clear focus, but I could make out enough detail.

I tried to take some images, but they are abysmal. However, I’m happy with the telescopic view. First time using my solar filter in a while. Let’s hope for similar clear skies on the morning of the 10th.

Best wishes, Jeff.
smerral
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Re: Sun in Ha and Cak - 4 June 2021

Post by smerral »

Thanks Brian and Jeff.

Jeff, yes the seeing wasn't great here either, though my images haven't come out too badly considering.

Brian, stacking the PST with the Lunt. That's an interesting set up. How do you go about doing that? Do you have any images of your set up? Not that I own a Lunt, not at present anyway.. I have the quark for higher resolution work with my 102mm refractor. I may give it a go shortly if it remains clear.
BRIAN
Celestron Nexstar 8SE, Ioptron CEM 25P mount
Altair Astro 102 ED refractor with Lunt B600 CaK diagonal
Coronado PST DS, Daystar Quark
ZWO ASI120MM camera, Canon 1000D (astro modified), Starlight Express SXV H9-C.
Gallery: http://www.astrobin.com/users/smerral/
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