First real CaK prom!
- Merlin66
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First real CaK prom!
Imaging on the 6th Sept after days of cloud and wind....
I've seen "shadows" of possible proms with my DIY CaK filter - but today there was no ambiguity!
Definitely a CaK prom.
ED80/x2.25 Baader/ ASI 1600
I've seen "shadows" of possible proms with my DIY CaK filter - but today there was no ambiguity!
Definitely a CaK prom.
ED80/x2.25 Baader/ ASI 1600
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
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Re: First real CaK prom!
That's amazing!
Jack
Jack
Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
- grimble_cornet
- Way More Fun to Share It!!
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Re: First real CaK prom!
Superb......... I was smiling for hours after capturing my first CaK prom and it must feel even better with a DIY system.
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Mike Garbett
Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/
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Mike Garbett
Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/
- Montana
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- MapleRidge
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Re: First real CaK prom!
That's a fine CaK image Ken..well done
Brian

Brian
Brian Colville
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C9.25 Edge + Stellarvue 110, f7 or C14
Deep Sky Work - Canon 60D (Ha mod), SBIG STF8300/FW8, OAG
Planetary Work - SBIG CFW10, ASI290MM/ASI462+ADC
8' Diameter Dome
MI250 Mount carrying:
iStar 150mm, f8 OTA Modular Setup
Ha configuration: 2xDSII/B1800Ha/Daystar ERF as modded Ha Scope
WL & CaK configuration: Lunt WL Wedge or Modded B1800CaK CaK Wedge
Lunt LS80PT/LS75FHa/B1200Ha
Daystar Quantum 0.45A SE, Quark Combo Chromosphere,
ASI1600MM, ASI174MM, ASI290MM, PGR Grasshopper Express
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C9.25 Edge + Stellarvue 110, f7 or C14
Deep Sky Work - Canon 60D (Ha mod), SBIG STF8300/FW8, OAG
Planetary Work - SBIG CFW10, ASI290MM/ASI462+ADC
8' Diameter Dome
MI250 Mount carrying:
iStar 150mm, f8 OTA Modular Setup
Ha configuration: 2xDSII/B1800Ha/Daystar ERF as modded Ha Scope
WL & CaK configuration: Lunt WL Wedge or Modded B1800CaK CaK Wedge
Lunt LS80PT/LS75FHa/B1200Ha
Daystar Quantum 0.45A SE, Quark Combo Chromosphere,
ASI1600MM, ASI174MM, ASI290MM, PGR Grasshopper Express
- Lowjiber
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Re: First real CaK prom!
Great shots, Ken. Nicely done!
I've been holding off setting up a CaK rig, but you may have inspired me now.
Thanks for the shares.
Clear Skies

I've been holding off setting up a CaK rig, but you may have inspired me now.
Thanks for the shares.
Clear Skies
John
Lunt 60 PT B/1200, Quark-Chromosphere, and ZWO ASI120MM & ASI174MM Cams.
Lunt 60 PT B/1200, Quark-Chromosphere, and ZWO ASI120MM & ASI174MM Cams.
- eroel
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Re: First real CaK prom!
Hi Ken,
Interesting. Well done.
Interesting. Well done.
regards Rainer
Observatorio Real de 14 San Luis Potosi Mexico
Observatorio Real de 14 San Luis Potosi Mexico
- Merlin66
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Re: First real CaK prom!
Thanks everyone!
Your feedback is appreciated.
Your feedback is appreciated.
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- Carbon60
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Re: First real CaK prom!
Very nicely done, Ken. CaK proms can be really tricky, as we know, unless you’re Eric, of course. 
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/
- DeepSolar64
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Re: First real CaK prom!
Very nice capture. It’s really easy to see.
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
Traq 60mm with Baader AstroSolar film
Lunt, Coronado, TeleVue, Orion, Celestron and Sears 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
Traq 60mm with Baader AstroSolar film
Lunt, Coronado, TeleVue, Orion, Celestron and Sears eyepieces

" Way more fun to see it! "
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Re: First real CaK prom!
Wow Ken, your DIY Cak item is better than the rest.
Fab image under the circumstances and very well captured..
Thanks for the interesting images
Terry
Fab image under the circumstances and very well captured..
Thanks for the interesting images
Terry