Wobbly Wednesday 25th March

this is the main message area for anything solar :)
Post Reply
User avatar
marktownley
Librarian
Librarian
Posts: 42272
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20440 times
Been thanked: 10246 times
Contact:

Wobbly Wednesday 25th March

Post by marktownley »

We've had clear skies all week here for days now, and a lack of planes means there are no contrails and the sky is blue not milky. This is really good for CaK imaging and even at the scale of todays images (60mm) the spicule ring around the sun is visible, even if not well resolved. The seeing though on wednesday was not good with the temperature rising from below freezing to mid teens celcius over several hours, and for the CaK certainly, I would have probably got better results with my 40mm scope.

ImageCak-FD-bw by Mark Townley, on Flickr

ImageCak-FD-colour by Mark Townley, on Flickr

Closeups were with the 60mm and 3x barlow, IMX174 chipped camera.

Imagecak-ne-limb-bw by Mark Townley, on Flickr

Imagecak-ne-limb-colour by Mark Townley, on Flickr

Imagecak-w-limb-bw by Mark Townley, on Flickr

Imagecak-w-limb-colour by Mark Townley, on Flickr

One constant is the ability of the double stacked 50mm Ha setup to cut through whatever seeing durge is thrown at it, and yesterday was no exception. The disk is quiet! But there were a few temporal emerging flux regions.

ImageHa-FD-DS-bw by Mark Townley, on Flickr

ImageHa-FD-DS-colour by Mark Townley, on Flickr

Turning to the SM90 double stacked with the Quark, I was fighting the seeing with the increased exposure but this shot of the flux regions came out ok.

Imagemid-disk-ds90-bw by Mark Townley, on Flickr

Imagemid-disk-ds90-colour by Mark Townley, on Flickr

Realising I was going nowhere quickly with the DS90 I dropped down into single stacked mode, a 2.5x barlow and the IMX174 camera again, ramping up the gain and keeping the exposure short cut through the seeing to my surprise and yesterdays proms revealed themselves in glory.

Imageprom-NE-bw by Mark Townley, on Flickr

Imageprom-NE-colour by Mark Townley, on Flickr

Imageprom-sw-bw by Mark Townley, on Flickr

Imageprom-sw-colour by Mark Townley, on Flickr

Imageprom-w-bw by Mark Townley, on Flickr

Imageprom-w-colour by Mark Townley, on Flickr

Phew, managed to get them all processed and up here before todays session starts. Lets see what it brings!

Mark


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
AndiesHandyHandies
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1444
Joined: Fri Mar 30, 2018 6:46 am
Location: Derbyshire UK
Has thanked: 3292 times
Been thanked: 1887 times

Re: Wobbly Wednesday 25th March

Post by AndiesHandyHandies »

Hi

In the Mak 180 I could see the prom in the last image similar to your last image.

I could see two jets either side with filigrees in between. A couple of bright spots.

I have done a temperature analysis which I will post. The Collimator/Baader 35nm are at 50C in the Mak. Secondary cooler than I expected.

Andrew


User avatar
JochenM
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2839
Joined: Tue Dec 10, 2019 2:26 pm
Location: Belgium
Has thanked: 1200 times
Been thanked: 1619 times
Contact:

Re: Wobbly Wednesday 25th March

Post by JochenM »

Everyone single one of those looks very nice, Mark. Well done.

Your CaK looks pretty sharp considering the current conditions.


Jochen Maes
Belgium
https://www.jochenmaes.com
User avatar
marktownley
Librarian
Librarian
Posts: 42272
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20440 times
Been thanked: 10246 times
Contact:

Re: Wobbly Wednesday 25th March

Post by marktownley »

Thanks Andrew, thanks Jochem.


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
User avatar
stef41
Im an EXPERT!
Im an EXPERT!
Posts: 472
Joined: Tue Nov 07, 2017 11:13 am
Location: france
Has thanked: 120 times
Been thanked: 1476 times
Contact:

Re: Wobbly Wednesday 25th March

Post by stef41 »

excellent series!
a pleasure for the eye :)

with kind regards,
stéphane


User avatar
DeepSolar64
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 18823
Joined: Thu Sep 05, 2019 12:19 am
Location: Lowndesville S.C.
Has thanked: 17572 times
Been thanked: 16694 times

Re: Wobbly Wednesday 25th March

Post by DeepSolar64 »

Mark,
Very nice prominence detail!

James


Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces

Image Visual Observer
" Way more fun to see it! "
User avatar
marktownley
Librarian
Librarian
Posts: 42272
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20440 times
Been thanked: 10246 times
Contact:

Re: Wobbly Wednesday 25th March

Post by marktownley »

Thank you Stephane and James :)


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
User avatar
Carbon60
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 14209
Joined: Wed Mar 07, 2012 12:33 pm
Location: Lancashire, UK
Has thanked: 8418 times
Been thanked: 8163 times

Re: Wobbly Wednesday 25th March

Post by Carbon60 »

Very nice images, Mark. You always provide such interesting commentary, explaining the reasoning behind your choice of equipment.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
User avatar
Martin_S
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1839
Joined: Sat Mar 16, 2019 12:34 am
Location: Brisbane , Australia
Has thanked: 979 times
Been thanked: 2992 times

Re: Wobbly Wednesday 25th March

Post by Martin_S »

Great Imaging Mark. I too have noticed here in Brisbane that the absence of jet aircraft flying overhead and possibly less air pollution has certainly cleaned the skies up, especially at night. My night skies over the last week have been really dark as opposed to the usual milky white airglow that I usually encounter.

Martin


H alpha : ,Skywatcher 120mm F8 open frame refractor, a tilted 2" 7nm H-alpha filter as a sub energy rejection filter, Baader TZ4 telecentric focal extender, Player One energy rejection filter, Combo Quark Chromosphere, Naked PST etalon for double stacking, ASI74mm camera
User avatar
krakatoa1883
Almost There...
Almost There...
Posts: 1041
Joined: Sat Jun 11, 2016 9:41 am
Location: Mediolanum
Has thanked: 153 times
Been thanked: 496 times

Re: Wobbly Wednesday 25th March

Post by krakatoa1883 »

Not much stuff to see in these days however great images, Mark. CaK is superb.


Raf
My solar images and reports with articles on solar equipment
User avatar
marktownley
Librarian
Librarian
Posts: 42272
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20440 times
Been thanked: 10246 times
Contact:

Re: Wobbly Wednesday 25th March

Post by marktownley »

Thanks guys for the kind comments - foggy here so far this morning.


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
User avatar
MAURITS
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 8507
Joined: Tue Nov 27, 2018 4:37 pm
Location: Belgium
Has thanked: 2412 times
Been thanked: 4786 times
Contact:

Re: Wobbly Wednesday 25th March

Post by MAURITS »

A great set of images Mark, nicely processed.


Regards,
Maurits

Vista del Cielo Observatory

www.vistadelcielo.be
User avatar
Montana
Librarian
Librarian
Posts: 34563
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 17672 times
Been thanked: 8791 times

Re: Wobbly Wednesday 25th March

Post by Montana »

Always your images look perfect to me :bow :hamster: I am interested in your perfect prominence shots. I find the ASI174 very noisy and your prominences are near perfect even though you say you increased the gain right up. How many images do you capture and stack to get rid of the noise especially when you have increased the gain?

Alexandra


User avatar
marktownley
Librarian
Librarian
Posts: 42272
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20440 times
Been thanked: 10246 times
Contact:

Re: Wobbly Wednesday 25th March

Post by marktownley »

ThanksMaurits and Alexandra. I was running with the gain on 50% on the slider in FC, I did a run of 2000 images and then stacked 128 of them. The camera is being powered via battery though, not USB power.


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
Post Reply