Sunday Sun 14th April '19

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Carbon60
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Sunday Sun 14th April '19

Post by Carbon60 » Sun Apr 14, 2019 4:41 pm

For the third day in a row the morning was clear and bright, although it started out somewhat overcast and I thought the opportunity to image was lost. By 9:00 am, however, things had taken a turn for the better and the cloudy sky had miraculously cleared, although, as I found out when I got set up, the seeing conditions were only poor to mediocre. Anyhow, on the basis of some scope time is better than none, here are the results of my efforts.

FD in Cak.

Image20190414_CaK_FD_Mono by Stuart Green, on Flickr

and a coloured version of the same image....

Image20190414_CaK_FD_Mono by Stuart Green, on Flickr

A closer view of AR2738 started to show the limits of the conditions. So tempting to over-sharpen...

Image20190414_AR2738_CaK1_ by Stuart Green, on Flickr

Then over to the red end and again the limits showed with some of the finer details unable to be resolved.

Image20190414_AR2738_Ha1_ by Stuart Green, on Flickr

Compare this image with one taken a couple of days earlier taken using the same setup (150mm/ DS Lunt35 mod, Basler acA1920-155um and 2.5x Powermate) in which finer details are visible. Seeing and air clarity make all the difference. Click on the images for their best representation.

Image20190412_AR2738_Ha_Mono by Stuart Green, on Flickr

Thanks for looking.

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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MapleRidge
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Re: Sunday Sun 14th April '19

Post by MapleRidge » Sun Apr 14, 2019 7:01 pm

Hi Stu...

Excellent CaK and Ha images :bow

Cold, overcast, and light drizzle/freezing rain here this afternoon...at least I get to see the sun though the group[ :D

Brian
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Maple Ridge Observatory

Cambray, ON Canada

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Re: Sunday Sun 14th April '19

Post by MAURITS » Sun Apr 14, 2019 7:13 pm

Excellent images Stu, very sharp.
Regards,
Maurits

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Christopher
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Re: Sunday Sun 14th April '19

Post by Christopher » Sun Apr 14, 2019 10:24 pm

Very nice shots Stu. Inspired me to take the 4” out for a few peaks through the sucker holes. That AR is putting on a good show!
Christopher

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Re: Sunday Sun 14th April '19

Post by marktownley » Mon Apr 15, 2019 8:17 am

Excellent results given the conditions. Sometimes (too often!) for us the seeing puts a ceiling on what we can achieve with our images. I'm hoping at some point this Easter break I get chance to get the HaT out, that is if feasible to use it...
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Re: Sunday Sun 14th April '19

Post by ffellah » Mon Apr 15, 2019 10:44 am

A lovely set of images, Stu, nice and sharp

Franco

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Montana
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Re: Sunday Sun 14th April '19

Post by Montana » Mon Apr 15, 2019 11:08 am

Fantastic images Stuart :bow I had exactly the same experience! woke up to cloudy skies and was cross (as it has been sunny all week) but then it cleared enough for me to get just a few snaps in WL and Halpha :) seeing was bad, the horrible bubbly/shaky movement.

Alexandra

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Re: Sunday Sun 14th April '19

Post by Davidm » Mon Apr 15, 2019 2:40 pm

Top images Stu. You certainly made the most of the seeing.
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Re: Sunday Sun 14th April '19

Post by christian viladrich » Mon Apr 15, 2019 6:42 pm

Hello Stu,
Seeing clearly makes the difference.
Christian Viladrich
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Carbon60
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Re: Sunday Sun 14th April '19

Post by Carbon60 » Mon Apr 15, 2019 6:48 pm

Many thanks for your kind comments, everyone. I'm hoping for another session on Wednesday, as according to the weather forecast it's supposed to be sunny....we'll see. Sun is one thing, good seeing is quite another. Hopefully the conditions will be kind.

Good luck everyone if you get the chance to image this beauty before it heads over the limb in a few days time.

Cheers

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Re: Sunday Sun 14th April '19

Post by bart1805 » Mon Apr 15, 2019 7:25 pm

What a difference! CaK full disks are nice!

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Re: Sunday Sun 14th April '19

Post by eroel » Tue Apr 16, 2019 4:36 am

Stu:
Beautiful clean and crisp images.
Best regards,
Eric,

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