H-alpha with 250 mm RCT
- Carbon60
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H-alpha with 250 mm RCT
A little sunshine this morning allowed me to trial my 250 mm RCT Frankenscope mod with a Lunt 35 Ha telescope at the rear and an internal collimating lens feeding the Lunt Etalon. The sky was clear and blue, but the seeing was not great for a scope of this aperture, so I wasn't expecting things to be optimal. My main interest this morning, however, was to check that everything worked together, as I've made a few changes since I last tried this combo. Things looked awful at first, but after a few tweaks to achieve proper alignment between the RCT and the Lunt I finally managed to obtain an image worth capturing.
Again, the seeing was pretty bad and really quite shocking when I reviewed the SER file. Still, AS3 did its magic as did Imppg to at least pull something from the mess. Overall I think is looks very promising. I just need to be ready for when the conditions are more favourable.
20180429_Ha_250RCT by Stuart Green, on Flickr
Thanks for looking.
Stu.
Again, the seeing was pretty bad and really quite shocking when I reviewed the SER file. Still, AS3 did its magic as did Imppg to at least pull something from the mess. Overall I think is looks very promising. I just need to be ready for when the conditions are more favourable.
20180429_Ha_250RCT by Stuart Green, on Flickr
Thanks for looking.
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: H-alpha with 250 mm RCT
Very promising indeed, Stu! Looking forward to when you get better conditions.
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Re: H-alpha with 250 mm RCT
Interesting result, it seems the scope is capable of really high resolution. Where is the ERF located ? Is it a front one ?
Raf
My solar images and reports with articles on solar equipment
My solar images and reports with articles on solar equipment
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Re: H-alpha with 250 mm RCT
Hi Stuart...
The image looks good under the conditions you describe. These large scopes need above average conditions by the looks of it. A year on and I'm still not overly happy with my 25cm SCT project but I hope to get more time to work on it this spring.
Keep us posted on your efforts and results.
Brian
The image looks good under the conditions you describe. These large scopes need above average conditions by the looks of it. A year on and I'm still not overly happy with my 25cm SCT project but I hope to get more time to work on it this spring.
Keep us posted on your efforts and results.
Brian
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2.2m Diameter Dome
iOptron CEM70G Mount carrying:
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Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
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ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
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:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
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Re: H-alpha with 250 mm RCT
Yes, promising, Stu. I know how you feel after having gone out twice this year with the 203mm HaT and having not much to show for it due to bad seeing.
I look forward to seeing your first results with good conditions...(and mine too)
Franco
I look forward to seeing your first results with good conditions...(and mine too)
Franco
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Re: H-alpha with 250 mm RCT
Nice shot Stu. I've not been able to get my HaT out so far this year because of the weather.
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Re: H-alpha with 250 mm RCT
Many thanks, Guys.
I guess we're pushing the limits with these scopes, hoping for and requiring great conditions for optimal performance; conditions that, regrettably, are all to infrequent.
Raf, the scope employs a full size front mounted ERF from Valery.
Stu.
I guess we're pushing the limits with these scopes, hoping for and requiring great conditions for optimal performance; conditions that, regrettably, are all to infrequent.
Raf, the scope employs a full size front mounted ERF from Valery.
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: H-alpha with 250 mm RCT
Yup, sadly this is true!
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: H-alpha with 250 mm RCT
It looks promising. The constrast appears good given the conditions.
Christian Viladrich
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Editor of "Solar Astronomy"
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Re: H-alpha with 250 mm RCT
Thanks Christian.
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: H-alpha with 250 mm RCT
Hello,
good results, given the current bad weather.
I look forward to the continuation with a beautiful sky
Paul
good results, given the current bad weather.
I look forward to the continuation with a beautiful sky
Paul
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sorry for my English translators google
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sorry for my English translators google
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Re: H-alpha with 250 mm RCT
Wow! I'd be really happy with an image like that. Very smooth and fine detail
I am hoping to do some WL with the C11 this weekend if the Sun decides to shine early in the morning (yes a miracle needed there).
Alexandra
I am hoping to do some WL with the C11 this weekend if the Sun decides to shine early in the morning (yes a miracle needed there).
Alexandra
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Re: H-alpha with 250 mm RCT
Nice Shot Stu, please keep us posted
Pedro Re'
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