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Ha Full Solar Disc, Proms & Sunspot AR2729 Dec 7 2018

solar imaging astrophotography
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#1 RickV

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Posted 07 December 2018 - 11:40 PM

The sky was clear today!  Yeah!  This is likely because the temperature dropped to -12C (10F) today.  Clear sky chart reported the seeing as 'poor'.

Clear Sky Chart.jpg

Poor it was!  Sun's perimeter was always shimmering and jumping around, the proms were continually going in & out of focus.  The Sun was low too, about 21 degrees above the horizon in Ottawa.

 

Scopes were Lunt LS50 for full solar disc and Canadian Telescope 152 with Lunt LS50 etalon SS.

Camera was ZWO ASI 178.

Exposures were for 1 minute at frame rates from 70 to 290 fps.

 

Because the seeing was so poor, this was a 'Lucky Image game - images posted here are typically stacks of the best 9 to 25 frames out of 4,000 to 12,000 frames.  (How did they ever manage in the days of photographic film?)

 

 

Full Solar Disc

Merge 09_57_11_p F25 & 10-06-01 F25.jpg

 

Prom at 1 O'clock

11_04_50_p F9PS Colr.jpg

 

Prom at 2 O'clock

10_45_43_p F16PS Colr.jpg

 

Prom at 4 O'clock

10_53_44_p F9PS Colr.jpg

 

Prom at 9 O'clock

11_11_00_p F16PS Colr.jpg

 

Prom at 11 O'clock

10_58_28_p F25PS Colr.jpg

 

Sunspot AR2729

11_27_05_p F9PSColr.jpg

 

Best,

Rick


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#2 sushi1128

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Posted 08 December 2018 - 06:21 AM

 A great set ! Rick.  cheers


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#3 rigel123

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Posted 08 December 2018 - 06:46 AM

Seeing is definitely playing havoc with trying to get some nice, sharp images.  That closeup of the AR came out nicely.


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#4 MalVeauX

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Posted 08 December 2018 - 09:14 AM

Looks good Rick!

 

Hopefully someone is imaging AR2729 as it rounds the limb today, I can't!

 

Very best,


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#5 BYoesle

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Posted 08 December 2018 - 09:43 AM

Nice job Rick - you've come a long way! 


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#6 RickV

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Posted 08 December 2018 - 01:14 PM

Thanks Bob... my progress is due to the support and encouragement of CN members like Marty, Terry, Mike, Warren, Valery and yourself.  It's all a learning experience and you guys share and make the journey a fun ride. waytogo.gif

 

Best,

Rick



#7 mikerepp

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Posted 10 December 2018 - 11:20 AM

Sweet!  Nicely done I especially like the full solar disc image.


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#8 MAURITS

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Posted 10 December 2018 - 11:29 AM

Nice images...


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#9 hopskipson

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Posted 10 December 2018 - 06:39 PM

Nice captures.

 

-12 C !! I hope you are doing this remotely.


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#10 RickV

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Posted 11 December 2018 - 01:30 PM

Nice captures.

 

-12 C !! I hope you are doing this remotely.

Hi James,

 

-12C is nothing, we shall go much lower than that.  For certain in February we should reach -30C.

 

But you are correct on the remote.  I got fed up with the set up time.  As of November, all my gear solar gear has resided in a 5x3 foot plastic garden shed.  I open the shed, unsnake the scope/mount from it's storage position, remove the lens cap, shadow align the scope to the sun and go back inside.  Inside, I control the mount, the etalon presure and the focus... all the while drinking coffee and munching.  Very nice indeed.

 

Best,

Rick


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