Belated Ca K images / July 10 / Taka TOA 150
-
- Way More Fun to Share It!!
- Posts: 2150
- Joined: Sun Jun 14, 2015 4:46 pm
- Location: France
- Has thanked: 1 time
- Been thanked: 2713 times
- Contact:
Belated Ca K images / July 10 / Taka TOA 150
Hi,
Now here are some Ca K images taken on July 10 with a double-stack configuration (Alluxa 0.37 nm + Barr 0.26 nm) and the TOA150.
The full-disk image :
http://astrosurf.com/viladrich/astro/so ... SI1600.jpg
The same image with different vizualisation to show prominences :
http://astrosurf.com/viladrich/astro/so ... 00-ddp.jpg
For comparison, an image of the photosphere. We can see that the location of the facular regions visible with the 396-5nm filter matches the location of Ca K bright plages:
http://astrosurf.com/viladrich/astro/so ... SI1600.jpg
One of the two groups showing a small flare :
http://astrosurf.com/viladrich/astro/so ... a-Barr.jpg
The other group :
http://astrosurf.com/viladrich/astro/so ... a-Barr.jpg
Clear skies
Christian
Now here are some Ca K images taken on July 10 with a double-stack configuration (Alluxa 0.37 nm + Barr 0.26 nm) and the TOA150.
The full-disk image :
http://astrosurf.com/viladrich/astro/so ... SI1600.jpg
The same image with different vizualisation to show prominences :
http://astrosurf.com/viladrich/astro/so ... 00-ddp.jpg
For comparison, an image of the photosphere. We can see that the location of the facular regions visible with the 396-5nm filter matches the location of Ca K bright plages:
http://astrosurf.com/viladrich/astro/so ... SI1600.jpg
One of the two groups showing a small flare :
http://astrosurf.com/viladrich/astro/so ... a-Barr.jpg
The other group :
http://astrosurf.com/viladrich/astro/so ... a-Barr.jpg
Clear skies
Christian
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
- ffellah
- Way More Fun to Share It!!
- Posts: 11171
- Joined: Mon Oct 27, 2014 6:46 pm
- Location: Westport, CT USA
- Has thanked: 9144 times
- Been thanked: 6025 times
Re: Belated Ca K images / July 10 / Taka TOA 150
These are great Christian. So much fine detail in there.
Franco
Franco
- MAURITS
- Way More Fun to Share It!!
- Posts: 8507
- Joined: Tue Nov 27, 2018 4:37 pm
- Location: Belgium
- Has thanked: 2412 times
- Been thanked: 4786 times
- Contact:
- Jordan Konisky
- Im an EXPERT!
- Posts: 356
- Joined: Thu Apr 18, 2019 12:08 am
- Location: Verona, Wisconsin
- Has thanked: 386 times
- Been thanked: 270 times
Re: Belated Ca K images / July 10 / Taka TOA 150
Terrific set of images today, Christian.
Jordan -
SkyWatcher ED100 Refractor with Diamond Steeltrack Crawford Focuser
Celestron CG4 Equatorial Mount
Daystar Quark H-Alpha Chromosphere
Lunt CaK B1800 Filter Module
Lunt White Light Solar Wedge
ZWO ASI174MM, ZWOASI1600MM Cameras
SkyWatcher ED100 Refractor with Diamond Steeltrack Crawford Focuser
Celestron CG4 Equatorial Mount
Daystar Quark H-Alpha Chromosphere
Lunt CaK B1800 Filter Module
Lunt White Light Solar Wedge
ZWO ASI174MM, ZWOASI1600MM Cameras
- marktownley
- Librarian
- Posts: 42270
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20424 times
- Been thanked: 10243 times
- Contact:
Re: Belated Ca K images / July 10 / Taka TOA 150
Stunning images as always Christian.
How much distance have you between the Barr and the Alluxa filters in the optical train?
How much distance have you between the Barr and the Alluxa filters in the optical train?
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!
- Carbon60
- Way More Fun to Share It!!
- Posts: 14205
- Joined: Wed Mar 07, 2012 12:33 pm
- Location: Lancashire, UK
- Has thanked: 8415 times
- Been thanked: 8161 times
Re: Belated Ca K images / July 10 / Taka TOA 150
Superb images, 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/
- Montana
- Librarian
- Posts: 34560
- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
- Has thanked: 17667 times
- Been thanked: 8788 times
Re: Belated Ca K images / July 10 / Taka TOA 150
Wow!! I do really love the prominence full disc and the CaK close ups are to die for
Alexandra
Alexandra
-
- Way More Fun to Share It!!
- Posts: 2150
- Joined: Sun Jun 14, 2015 4:46 pm
- Location: France
- Has thanked: 1 time
- Been thanked: 2713 times
- Contact:
Re: Belated Ca K images / July 10 / Taka TOA 150
Thanks to all !
Stu, the distance between the Barr and the Alluxa filters is about 10 mm. You can have a look at the setup here :
http://astrosurf.com/viladrich/astro/in ... onomik.jpg
However, when I double-stack the Alluxa 0.37 nm with the Alluxa 0.15 nm, I definitely need more spacing (40 mm or more), otherwise I have huge glaring. I still have to optimize this second setup. It is a bit tricky.
Stu, the distance between the Barr and the Alluxa filters is about 10 mm. You can have a look at the setup here :
http://astrosurf.com/viladrich/astro/in ... onomik.jpg
However, when I double-stack the Alluxa 0.37 nm with the Alluxa 0.15 nm, I definitely need more spacing (40 mm or more), otherwise I have huge glaring. I still have to optimize this second setup. It is a bit tricky.
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
- marktownley
- Librarian
- Posts: 42270
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20424 times
- Been thanked: 10243 times
- Contact:
Re: Belated Ca K images / July 10 / Taka TOA 150
I thought they were close based on prom full disk image.christian viladrich wrote: ↑Fri Sep 16, 2022 4:49 pm
Stu, the distance between the Barr and the Alluxa filters is about 10 mm. You can have a look at the setup here :
http://astrosurf.com/viladrich/astro/in ... onomik.jpg
However, when I double-stack the Alluxa 0.37 nm with the Alluxa 0.15 nm, I definitely need more spacing (40 mm or more), otherwise I have huge glaring. I still have to optimize this second setup. It is a bit tricky.
I also found the same thing as you, and have my 2 CaK filters with as much distance as possible, this pretty much gets rid of all glaring and lowers the black point (close to 0).
Could you mount one of the filters on the nose of the FFC to get a bit more distance?
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!
-
- Way More Fun to Share It!!
- Posts: 2150
- Joined: Sun Jun 14, 2015 4:46 pm
- Location: France
- Has thanked: 1 time
- Been thanked: 2713 times
- Contact:
Re: Belated Ca K images / July 10 / Taka TOA 150
Hello Markmarktownley wrote: ↑Sat Sep 17, 2022 6:52 amI thought they were close based on prom full disk image.christian viladrich wrote: ↑Fri Sep 16, 2022 4:49 pm
the distance between the Barr and the Alluxa filters is about 10 mm. You can have a look at the setup here :
http://astrosurf.com/viladrich/astro/in ... onomik.jpg
However, when I double-stack the Alluxa 0.37 nm with the Alluxa 0.15 nm, I definitely need more spacing (40 mm or more), otherwise I have huge glaring. I still have to optimize this second setup. It is a bit tricky.
I also found the same thing as you, and have my 2 CaK filters with as much distance as possible, this pretty much gets rid of all glaring and lowers the black point (close to 0).
Could you mount one of the filters on the nose of the FFC to get a bit more distance?
Mark
I wouldn't try it for two reasons :
- the filter would be exposed to the f/7 focus. That would be a lot of energy over a small surface. I already cracked a Baader K-line this way ...
- because of the f/7 focus, the FWHM would broaden.
I am more or less thinking of trying the AiryLab telecentric instead of the FFC in order to have more flexibility in the distance between the Ca K filters.
Or maybe go back to the Basler 1920-155. Its larger pixels would mean a larger distance to the FFC. Still, I remember I had a lot of glaring when I used the Basler and the Ca K filters.
I need to make some systematic testing there ...
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
- marktownley
- Librarian
- Posts: 42270
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20424 times
- Been thanked: 10243 times
- Contact:
Re: Belated Ca K images / July 10 / Taka TOA 150
Hiya Christian
Ahhh yes, f7 is going to fry things very quickly, not thought of that!
I've been very impressed with the Airylab telecentric for CaK, but I always run it on an f10 system, not sure what would be like on f7. It would certainly give you more distance to play with for filter spacing.
Mark
Ahhh yes, f7 is going to fry things very quickly, not thought of that!
I've been very impressed with the Airylab telecentric for CaK, but I always run it on an f10 system, not sure what would be like on f7. It would certainly give you more distance to play with for filter spacing.
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!
- arnedanielsen
- Way More Fun to Share It!!
- Posts: 7285
- Joined: Fri Apr 18, 2014 10:42 pm
- Location: Vestby, Norway
- Has thanked: 6181 times
- Been thanked: 7142 times
Re: Belated Ca K images / July 10 / Taka TOA 150
Another fantastic collection, Christian!
I'm particularly impressed with the high-res and the CaK prominences.
Best regards,
Arne
I'm particularly impressed with the high-res and the CaK prominences.
Best regards,
Arne
Re: Belated Ca K images / July 10 / Taka TOA 150
Very nice photosphere image!
Stellarvue 152 mm
APM Hershel Wedge
Coronado II 90 mm BF 30 DS
iOptron 120 mount
APM Hershel Wedge
Coronado II 90 mm BF 30 DS
iOptron 120 mount
- DeepSolar64
- Way More Fun to Share It!!
- Posts: 18823
- Joined: Thu Sep 05, 2019 12:19 am
- Location: Lowndesville S.C.
- Has thanked: 17572 times
- Been thanked: 16693 times
Re: Belated Ca K images / July 10 / Taka TOA 150
Christian,
These blew me away!!
James
These blew me away!!
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
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! "