Wobbly Wednesday 25th March
- marktownley
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Wobbly Wednesday 25th March
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.
Cak-FD-bw by Mark Townley, on Flickr
Cak-FD-colour by Mark Townley, on Flickr
Closeups were with the 60mm and 3x barlow, IMX174 chipped camera.
cak-ne-limb-bw by Mark Townley, on Flickr
cak-ne-limb-colour by Mark Townley, on Flickr
cak-w-limb-bw by Mark Townley, on Flickr
cak-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.
Ha-FD-DS-bw by Mark Townley, on Flickr
Ha-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.
mid-disk-ds90-bw by Mark Townley, on Flickr
mid-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.
prom-NE-bw by Mark Townley, on Flickr
prom-NE-colour by Mark Townley, on Flickr
prom-sw-bw by Mark Townley, on Flickr
prom-sw-colour by Mark Townley, on Flickr
prom-w-bw by Mark Townley, on Flickr
prom-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
Cak-FD-bw by Mark Townley, on Flickr
Cak-FD-colour by Mark Townley, on Flickr
Closeups were with the 60mm and 3x barlow, IMX174 chipped camera.
cak-ne-limb-bw by Mark Townley, on Flickr
cak-ne-limb-colour by Mark Townley, on Flickr
cak-w-limb-bw by Mark Townley, on Flickr
cak-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.
Ha-FD-DS-bw by Mark Townley, on Flickr
Ha-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.
mid-disk-ds90-bw by Mark Townley, on Flickr
mid-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.
prom-NE-bw by Mark Townley, on Flickr
prom-NE-colour by Mark Townley, on Flickr
prom-sw-bw by Mark Townley, on Flickr
prom-sw-colour by Mark Townley, on Flickr
prom-w-bw by Mark Townley, on Flickr
prom-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
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!
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Re: Wobbly Wednesday 25th March
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
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
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Re: Wobbly Wednesday 25th March
Everyone single one of those looks very nice, Mark. Well done.
Your CaK looks pretty sharp considering the current conditions.
Your CaK looks pretty sharp considering the current conditions.
- marktownley
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Re: Wobbly Wednesday 25th March
Thanks Andrew, thanks Jochem.
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Re: Wobbly Wednesday 25th March
excellent series!
a pleasure for the eye
with kind regards,
stéphane
a pleasure for the eye
with kind regards,
stéphane
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Re: Wobbly Wednesday 25th March
Mark,
Very nice prominence detail!
James
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
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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
Visual Observer
" Way more fun to see it! "
- marktownley
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Re: Wobbly Wednesday 25th March
Thank you Stephane and James
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Re: Wobbly Wednesday 25th March
Very nice images, Mark. You always provide such interesting commentary, explaining the reasoning behind your choice of equipment.
Stu.
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/
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Wobbly Wednesday 25th March
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
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
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Re: Wobbly Wednesday 25th March
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
My solar images and reports with articles on solar equipment
- marktownley
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Re: Wobbly Wednesday 25th March
Thanks guys for the kind comments - foggy here so far this morning.
http://brierleyhillsolar.blogspot.co.uk/
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Re: Wobbly Wednesday 25th March
Always your images look perfect to me 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
Alexandra
- marktownley
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Re: Wobbly Wednesday 25th March
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.
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!