Sunday Sun 3rd June_RCT_Ha
- Carbon60
- Way More Fun to Share It!!
- Posts: 14314
- Joined: Wed Mar 07, 2012 12:33 pm
- Location: Lancashire, UK
- Has thanked: 8559 times
- Been thanked: 8291 times
Sunday Sun 3rd June_RCT_Ha
Lovely blue skies although with a hint of cloud building in the North and East and some haze starting to develop right where it shouldn't
RCT with the Lunt 35
and for Valery, the almost 'zero' movement on the thumbscrew under today's conditions.
AR2712 close to the limb in Mono and Colour.
AS!3, Imppg and Pixinsight with Basler acA1920-155um + 2.5x Powermate.
20180603_AR2712_RCT_Mono by Stuart Green, on Flickr
20180603_AR2712_RCT_Colour by Stuart Green, on Flickr
Best viewed as the 'original' from Flickr.
The session was paused as I waited for the haze (precipitated from a contrail) to pass..... long wait!!
Thanks for looking.
Stu.
RCT with the Lunt 35
and for Valery, the almost 'zero' movement on the thumbscrew under today's conditions.
AR2712 close to the limb in Mono and Colour.
AS!3, Imppg and Pixinsight with Basler acA1920-155um + 2.5x Powermate.
20180603_AR2712_RCT_Mono by Stuart Green, on Flickr
20180603_AR2712_RCT_Colour by Stuart Green, on Flickr
Best viewed as the 'original' from Flickr.
The session was paused as I waited for the haze (precipitated from a contrail) to pass..... long wait!!
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/
- GreatAttractor
- Almost There...
- Posts: 965
- Joined: Sat Jun 01, 2013 1:04 pm
- Location: Switzerland
- Has thanked: 747 times
- Been thanked: 757 times
- Valery
- Way More Fun to Share It!!
- Posts: 4059
- Joined: Sun Nov 18, 2012 3:13 pm
- Has thanked: 156 times
- Been thanked: 893 times
Re: Sunday Sun 3rd June_RCT_Ha
Hi Stu,
The result is clearly better than all before! Nice processing too.
I noted that you do use some oversampling. The image scale you do use with a 10" scope is significatly larger
than I do use with my 11" scope. Smaller scale will makes imaging easier - shorter exposure, larger FOV, better
seeing freezing and faster fps. I would recommend F/18-20 for a camera with IMX174 chip.
CS
Valery
The result is clearly better than all before! Nice processing too.
I noted that you do use some oversampling. The image scale you do use with a 10" scope is significatly larger
than I do use with my 11" scope. Smaller scale will makes imaging easier - shorter exposure, larger FOV, better
seeing freezing and faster fps. I would recommend F/18-20 for a camera with IMX174 chip.
CS
Valery
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
- marktownley
- Librarian
- Posts: 42550
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20819 times
- Been thanked: 10491 times
- Contact:
Re: Sunday Sun 3rd June_RCT_Ha
Nice to see the pics of your setup Stu, looks like it's delivering the goods. I got the HaT out first thing this morning but seeing was mush so put it straight away.
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!
- MalVeauX
- Way More Fun to Share It!!
- Posts: 1861
- Joined: Tue May 09, 2017 7:58 pm
- Location: Florida
- Has thanked: 1188 times
- Been thanked: 1382 times
Re: Sunday Sun 3rd June_RCT_Ha
Interesting setup, I'm curious about how to rear-mount fast focal-ratio etalons behind larger scopes, be they SCT or refractor (though mainly interested in SCT at the larger apertures for compactness and weight). Especially finding a way to use a 50mm or 60mm etalon, instead of a PST etalon to avoid the quality of copy variation in the PST etalons, or simply getting a double stack unit and using that behind a larger scope, if possible. Would love to know more.
Very best,
Very best,
- rsfoto
- Way More Fun to Share It!!
- Posts: 6306
- Joined: Mon Jun 18, 2012 8:30 pm
- Location: San Luis Potosi, México
- Has thanked: 9723 times
- Been thanked: 5773 times
Re: Sunday Sun 3rd June_RCT_Ha
WOW amazing images and interesting set up
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
- eroel
- Way More Fun to Share It!!
- Posts: 9444
- Joined: Mon Dec 19, 2011 10:45 pm
- Location: México D.F.
- Been thanked: 4980 times
- Montana
- Librarian
- Posts: 34722
- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
- Has thanked: 17974 times
- Been thanked: 8906 times
- ffellah
- Way More Fun to Share It!!
- Posts: 11308
- Joined: Mon Oct 27, 2014 6:46 pm
- Location: Westport, CT USA
- Has thanked: 9326 times
- Been thanked: 6158 times
- Carbon60
- Way More Fun to Share It!!
- Posts: 14314
- Joined: Wed Mar 07, 2012 12:33 pm
- Location: Lancashire, UK
- Has thanked: 8559 times
- Been thanked: 8291 times
Re: Sunday Sun 3rd June_RCT_Ha
Many thanks everyone for your kind comments. Like all these things, practice and homing in on things that work are what count.....and I'm still learning! AR2712 is/was a particularly spectacular target with loads of dramatic structures on a large scale.
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/
- Carbon60
- Way More Fun to Share It!!
- Posts: 14314
- Joined: Wed Mar 07, 2012 12:33 pm
- Location: Lancashire, UK
- Has thanked: 8559 times
- Been thanked: 8291 times
Re: Sunday Sun 3rd June_RCT_Ha
Thanks for your feedback, Valery. I processed these using the re-sampling x2 function in Autostakkert 3 which made the image quite large, but my thinking was that this would yield finer detail in the stacked image. Maybe I should use 2x2 binning to reduce the exposure time as well.Valery wrote: ↑Sun Jun 03, 2018 1:54 pm Hi Stu,
The result is clearly better than all before! Nice processing too.
I noted that you do use some oversampling. The image scale you do use with a 10" scope is significatly larger
than I do use with my 11" scope. Smaller scale will makes imaging easier - shorter exposure, larger FOV, better
seeing freezing and faster fps. I would recommend F/18-20 for a camera with IMX174 chip.
CS
Valery
I think the scope is running at about F35 with a 2.5x Powermate. Maybe I should use a 1.5x barlow instead to bring it closer to F20.... more experimentation to be done. I was just so pleased to be able to capture something worthwhile before the sky conditions deteriorated.
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/
- Carbon60
- Way More Fun to Share It!!
- Posts: 14314
- Joined: Wed Mar 07, 2012 12:33 pm
- Location: Lancashire, UK
- Has thanked: 8559 times
- Been thanked: 8291 times
Re: Sunday Sun 3rd June_RCT_Ha
Hi Marty,MalVeauX wrote: ↑Sun Jun 03, 2018 6:11 pm Interesting setup, I'm curious about how to rear-mount fast focal-ratio etalons behind larger scopes, be they SCT or refractor (though mainly interested in SCT at the larger apertures for compactness and weight). Especially finding a way to use a 50mm or 60mm etalon, instead of a PST etalon to avoid the quality of copy variation in the PST etalons, or simply getting a double stack unit and using that behind a larger scope, if possible. Would love to know more.
Very best,
I employ a collimating lens mounted inside the rear of the scope of an appropriate focal ratio to produce parallel rays for the etalon. The Lunt 35 seems to work quite well since the etalon(s) are front mounted.
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/