Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
-
- 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:
Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Dear All,
Here is my first ever Ca K image taken with the 300 mm solar Newtonian telescope. The seeing was far from perfect, still there is a huge increase in resolution compared to the images taken with my 150 mm TOA refractor. A very different world opens to itself. A lot of detail is visible inside the reverse granulation cells. The intergranular grains are visible, just like in G-band, but at the chromospheric level instead of the photosphere level
Both EO393-10 nm and Alluxa Ca K filters are tilted. The EO394-10 nm filter is used to reject reflection away for the main image.
Finally, the exposure time remains reasonable even with the uncoated mirror. Weather permitting, I hope to get some images of the small sunspot currently visible.
Kind regards
Christian Viladrich
Here is my first ever Ca K image taken with the 300 mm solar Newtonian telescope. The seeing was far from perfect, still there is a huge increase in resolution compared to the images taken with my 150 mm TOA refractor. A very different world opens to itself. A lot of detail is visible inside the reverse granulation cells. The intergranular grains are visible, just like in G-band, but at the chromospheric level instead of the photosphere level
Both EO393-10 nm and Alluxa Ca K filters are tilted. The EO394-10 nm filter is used to reject reflection away for the main image.
Finally, the exposure time remains reasonable even with the uncoated mirror. Weather permitting, I hope to get some images of the small sunspot currently visible.
Kind regards
Christian Viladrich
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/
- pedro
- Way More Fun to Share It!!
- Posts: 12256
- Joined: Sun May 01, 2016 8:26 pm
- Location: Portugal
- Has thanked: 14 times
- Been thanked: 6577 times
- Contact:
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
AMAZING resolution Christian, the reverse granulation cells are fabulous
Pedro Re'
https://pedroreastrophotography.com/
https://pedroreastrophotography.com/
- MalVeauX
- Way More Fun to Share It!!
- Posts: 1858
- Joined: Tue May 09, 2017 7:58 pm
- Location: Florida
- Has thanked: 1171 times
- Been thanked: 1360 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Super image Christian!
Do the two filters allow you to see filaments in CaK?
Very best,
Do the two filters allow you to see filaments in CaK?
Very best,
- rsfoto
- Way More Fun to Share It!!
- Posts: 6166
- Joined: Mon Jun 18, 2012 8:30 pm
- Location: San Luis Potosi, México
- Has thanked: 9417 times
- Been thanked: 5583 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Hi Christian,
WOW what a resolution Are the two filters at the same time in action ?
WOW what a resolution Are the two filters at the same time in action ?
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°
- DeepSolar64
- Way More Fun to Share It!!
- Posts: 18829
- Joined: Thu Sep 05, 2019 12:19 am
- Location: Lowndesville S.C.
- Has thanked: 17581 times
- Been thanked: 16697 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
WoW!!! BIG thumbs up!!
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! "
- DeepSolar64
- Way More Fun to Share It!!
- Posts: 18829
- Joined: Thu Sep 05, 2019 12:19 am
- Location: Lowndesville S.C.
- Has thanked: 17581 times
- Been thanked: 16697 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
WoW!!! BIG thumbs up!! And from a newtonian. What a surprise.
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! "
-
- Im an EXPERT!
- Posts: 395
- Joined: Mon May 04, 2020 2:21 pm
- Location: Moscow, Russia
- Has thanked: 1262 times
- Been thanked: 1057 times
- Contact:
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Great, both setup and imaging result!
you can count granulation cells one by one in Ca, incredible... I count days tracking the Lunt CaK just ordered
thanks, Christian!
Leo
you can count granulation cells one by one in Ca, incredible... I count days tracking the Lunt CaK just ordered
thanks, Christian!
Leo
- Martin_S
- Way More Fun to Share It!!
- Posts: 1839
- Joined: Sat Mar 16, 2019 12:34 am
- Location: Brisbane , Australia
- Has thanked: 979 times
- Been thanked: 2992 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Amazing captures Christian .
Martin
Martin
H alpha : ,Skywatcher 120mm F8 open frame refractor, a tilted 2" 7nm H-alpha filter as a sub energy rejection filter, Baader TZ4 telecentric focal extender, Player One energy rejection filter, Combo Quark Chromosphere, Naked PST etalon for double stacking, ASI74mm camera
-
- Ohhhhhh My!
- Posts: 170
- Joined: Sat Nov 29, 2014 9:50 pm
- Has thanked: 1305 times
- Been thanked: 63 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Fabulous image!
John
John
Last edited by John on Wed Aug 05, 2020 11:14 pm, edited 1 time in total.
- DeepSolar64
- Way More Fun to Share It!!
- Posts: 18829
- Joined: Thu Sep 05, 2019 12:19 am
- Location: Lowndesville S.C.
- Has thanked: 17581 times
- Been thanked: 16697 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Aren’t the granules seen in CaK known as super granules? Similar to the granules seen in the white light photosphere but larger.
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! "
- JochenM
- Way More Fun to Share It!!
- Posts: 2839
- Joined: Tue Dec 10, 2019 2:26 pm
- Location: Belgium
- Has thanked: 1200 times
- Been thanked: 1619 times
- Contact:
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Very interesting (and quite the spectacular look), Christian.
- marktownley
- Librarian
- Posts: 42274
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20442 times
- Been thanked: 10248 times
- Contact:
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Really quite stunning Christian! I look forward to more!
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!
- Montana
- Librarian
- Posts: 34563
- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
- Has thanked: 17672 times
- Been thanked: 8793 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Just wonderful!!! I need to save this image and use it as a guide for my C11 CaK imaging attempts. It is encouraging to see your flat scales as I was starting to see this but mine have a swirling motion included too (bad seeing and bad stacking). I wish I was at the top of the mountain too
Alexandra
Alexandra
-
- Ohhhhhh My!
- Posts: 97
- Joined: Fri May 08, 2020 1:38 am
- Has thanked: 4 times
- Been thanked: 98 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Exceptional image Christian. I find that the cells look very much like the shiny cells of G-band very flat like float glass.
All the best
John
All the best
John
-
- Way More Fun to Share It!!
- Posts: 1444
- Joined: Fri Mar 30, 2018 6:46 am
- Location: Derbyshire UK
- Has thanked: 3295 times
- Been thanked: 1887 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Hi
Very encouraging.
Hopefully get time this winter to get my 300mm solar dobsonian project done.
Cheers. Andrew.
Very encouraging.
Hopefully get time this winter to get my 300mm solar dobsonian project done.
Cheers. Andrew.
- Carbon60
- Way More Fun to Share It!!
- Posts: 14209
- Joined: Wed Mar 07, 2012 12:33 pm
- Location: Lancashire, UK
- Has thanked: 8418 times
- Been thanked: 8165 times
Re: Ca K image taken on August 2 with the 300 mm solar telescope - best resolution yet
Absolutely superb image, Christian, really pushing the limits of what can be achieved by solar enthusiasts and something to aspire to. We mere mortals will probably never quite get there, but it’s a lesson into what can be achieved with the right kit operated with skill under good conditions. I’m wondering what you’re limits will be when the conditions are perfect.
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/