CaK 10th August
- marktownley
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CaK 10th August
Hi All.
We have our 'heatwave' here in the UK at the moment (read it's summer!), and while we have temperatures in the low 30s and cloudless skies all day and night it does mean that there are only really a couple of hours after sunrise for solar before the seeing collapses. I've been making the most of the mornings to tinker with my CaK filter, something i've been wanting to do for sometime.
While with filters it is not possible to get the features Douglas and others get with their SHG views in this wavelength, with some work it is possible to see features higher in the chromosphere that off the shelf CaK filters might struggle with.
Close ups were taken at 80mm f15 with the zwo183mm camera.
Looks like there are some jets emerging from the smaller active region on the left?
ar13071-CaK-80mm-f15-zwo183mm by Mark Townley, on Flickr
ar13076-CaK-80mm-f15-zwo183 by Mark Townley, on Flickr
ar13074-CaK-80mm-f15-zwo183 by Mark Townley, on Flickr
plage-cak-80mm-f15-zwo183mm by Mark Townley, on Flickr
The chromospheric fringe and proms are now easily visible:
new-ar-cak-80m-f15-zwo183 by Mark Townley, on Flickr
The full disk was taken with the ED80 stopped down to 60mm at f10 with the zwo183mm. The proms and spicule layer are taken in 'one shot' and use shadows and highlights to bring them out more.
CaK-FD-60mm-f10-zwo183mm by Mark Townley, on Flickr
As each day has gone by this week, the CaK filter has evolved a bit more, there's a few more things I want to do yet that should reduce scattered (out of focus) light a little more, which should improve proms a bit more yet. All good fun tinkering!
Hope you like
Mark
We have our 'heatwave' here in the UK at the moment (read it's summer!), and while we have temperatures in the low 30s and cloudless skies all day and night it does mean that there are only really a couple of hours after sunrise for solar before the seeing collapses. I've been making the most of the mornings to tinker with my CaK filter, something i've been wanting to do for sometime.
While with filters it is not possible to get the features Douglas and others get with their SHG views in this wavelength, with some work it is possible to see features higher in the chromosphere that off the shelf CaK filters might struggle with.
Close ups were taken at 80mm f15 with the zwo183mm camera.
Looks like there are some jets emerging from the smaller active region on the left?
ar13071-CaK-80mm-f15-zwo183mm by Mark Townley, on Flickr
ar13076-CaK-80mm-f15-zwo183 by Mark Townley, on Flickr
ar13074-CaK-80mm-f15-zwo183 by Mark Townley, on Flickr
plage-cak-80mm-f15-zwo183mm by Mark Townley, on Flickr
The chromospheric fringe and proms are now easily visible:
new-ar-cak-80m-f15-zwo183 by Mark Townley, on Flickr
The full disk was taken with the ED80 stopped down to 60mm at f10 with the zwo183mm. The proms and spicule layer are taken in 'one shot' and use shadows and highlights to bring them out more.
CaK-FD-60mm-f10-zwo183mm by Mark Townley, on Flickr
As each day has gone by this week, the CaK filter has evolved a bit more, there's a few more things I want to do yet that should reduce scattered (out of focus) light a little more, which should improve proms a bit more yet. All good fun tinkering!
Hope you like
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!
- DeepSolar64
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Re: CaK 10th August
What make of filter are you tinkering with?
These look good. I always enjoy your CaK work.
James
These look good. I always enjoy your CaK work.
James
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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
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- marktownley
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Re: CaK 10th August
Thanks James, CaK PST filters.DeepSolar64 wrote: ↑Thu Aug 11, 2022 4:57 am What make of filter are you tinkering with?
These look good. I always enjoy your CaK work.
James
http://brierleyhillsolar.blogspot.co.uk/
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- marktownley
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Re: CaK 10th August
Here's a rough and ready view of the CaK proms on the FD...
CaK Proms by Mark Townley, on Flickr
Bit of scatter and ghosting, nothing an intrepid tinkerer can't deal with
CaK Proms by Mark Townley, on Flickr
Bit of scatter and ghosting, nothing an intrepid tinkerer can't deal with
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!
- DeepSolar64
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Re: CaK 10th August
I would love to have a Coronado CaK PST!
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
Visual Observer
" Way more fun to see it! "
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! "
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Re: CaK 10th August
Excellent Mark!
Warren
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Orion ED80T CF
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Lunt WL Wedge
Baader Photographic Film
ASI174MM
Skyris 236M
Player One Saturn-M SQR
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Re: CaK 10th August
Great stuff Mark. Great closeups, disks, proms and love those CaK spicules. I have to try those.
Franco
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Re: CaK 10th August
Great CaK shots Mark crisp and clear. Very well done. The thought went through my mind to do the same thing today but the clouds had the final say. Good that you had some clear sky’s to get some imaging done.
Gerard
Gerard
- marktownley
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Re: CaK 10th August
Thanks everyone!
It's a Bresser 127/1200 stopped down to 80mm (f15).
http://brierleyhillsolar.blogspot.co.uk/
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- MAURITS
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- marktownley
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Re: CaK 10th August
Thanks Maurits.
Just processing todays images, seeing and tuning was better than yesterday
Just processing todays images, seeing and tuning was better than yesterday
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: CaK 10th August
Beautiful CaK work, Mark!
I'm particularly impressed with how you manage to get the prom and spicules as well as the disk.
Best regards,
Arne
I'm particularly impressed with how you manage to get the prom and spicules as well as the disk.
Best regards,
Arne