June 5 2021 CaK Ha 2827 2829
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June 5 2021 CaK Ha 2827 2829
Hi all,
Saturday session was non-surprising with a seeing around 2", some moments dropped to 1,5", but I got a fair result imaging FD in CaK with 100mm f10 at full resolution 5496×3672, ASI183mm camera. With good enough 60% QE at 400nm. CaK closeup - TZ-4, 174mm. The rest of Ha was made with 130/7+Quark, almost quiet AR's 2827, 2829 and some prom activities.
thanks for looking
Leo
Saturday session was non-surprising with a seeing around 2", some moments dropped to 1,5", but I got a fair result imaging FD in CaK with 100mm f10 at full resolution 5496×3672, ASI183mm camera. With good enough 60% QE at 400nm. CaK closeup - TZ-4, 174mm. The rest of Ha was made with 130/7+Quark, almost quiet AR's 2827, 2829 and some prom activities.
thanks for looking
Leo
- Attachments
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- CaK FD
- Sun_20210605 094833_cAIdPs c99.jpg (2.3 MiB) Viewed 425 times
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- CaK AR12827
- Sun_20210605 101322_AIdPs.jpg (350.96 KiB) Viewed 425 times
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- Ha AR12827
- Sun_20210605 110127_AIdPs.jpg (450.86 KiB) Viewed 425 times
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- Ha AR12829
- Sun_20210605 113835_Aid.jpg (643.51 KiB) Viewed 425 times
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- NE limb
- Sun_20210605 115733_AIdwPst.jpg (310.19 KiB) Viewed 425 times
- ffellah
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Re: June 5 2021 CaK Ha 2827 2829
A fine collection of images here Leo!
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: June 5 2021 CaK Ha 2827 2829
Hi Leo, an excellent set of captures and thanks vm for sharing
Terry
Terry
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Re: June 5 2021 CaK Ha 2827 2829
Thanks, Franco, Mark, Terry, I apreciate your comments.
I tried this time also with 130/7 Lunt80 DS mod, but I got grid pattern with asi183mm camera on FD, and than made some closeup shots with 4x till the turbulence at midday became inappropriate to make proper comparison of the Lunt mod with Quark. Well, next time.
regards
Leo
I tried this time also with 130/7 Lunt80 DS mod, but I got grid pattern with asi183mm camera on FD, and than made some closeup shots with 4x till the turbulence at midday became inappropriate to make proper comparison of the Lunt mod with Quark. Well, next time.
regards
Leo
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Re: June 5 2021 CaK Ha 2827 2829
Very nice images Leo. I love the last one with the delicate prominence detail.
James
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Re: June 5 2021 CaK Ha 2827 2829
Excellent details in all photos Leo!
Thanks for sharing.
Alexandros
Thanks for sharing.
Alexandros
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Re: June 5 2021 CaK Ha 2827 2829
Leo:
A super collection of clean crisp images.
Thanks for sharing them.
Eric.
A super collection of clean crisp images.
Thanks for sharing them.
Eric.
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Re: June 5 2021 CaK Ha 2827 2829
Just a thought Leo, try doing the full disk with the 100mmf10 stopped down to 60mm. It will make for absolutely perfect critical sampling with the 2.4um pixels of the 183, you'll also find it a lot more seeing friendly too...
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Re: June 5 2021 CaK Ha 2827 2829
Thanks for all your kind comments!
Mark, I agree with you about critical sampling in Ca, 2.4um with f15, it was clear visual effect of improving picture while placing the diaphragm before the objective. Anyway I like the combination of FL 910mm with 183chip fits exactly full disk in full resolution.
Make a right click to look FD in 3992x3992 pix.
Although seeing became weak, I found one stack to present from the later session I made with D-ERF+130/7 Lunt80MT DS mod and TZ-4. Just to compare with the previous shot made with Quark. A bit less resolution, darker DS (5.7ms, gain105, 152fps - Quark vs 15.7ms, gain148, 63fps - DS), better visual contrast matching Ha CWL. Again, a seeing got worse than before with Quark.
Any thoughts are welcome.
Leo
Mark, I agree with you about critical sampling in Ca, 2.4um with f15, it was clear visual effect of improving picture while placing the diaphragm before the objective. Anyway I like the combination of FL 910mm with 183chip fits exactly full disk in full resolution.
Make a right click to look FD in 3992x3992 pix.
Although seeing became weak, I found one stack to present from the later session I made with D-ERF+130/7 Lunt80MT DS mod and TZ-4. Just to compare with the previous shot made with Quark. A bit less resolution, darker DS (5.7ms, gain105, 152fps - Quark vs 15.7ms, gain148, 63fps - DS), better visual contrast matching Ha CWL. Again, a seeing got worse than before with Quark.
Any thoughts are welcome.
Leo
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- AR12829
- Sun_20210605 131254_AIdPs.jpg (432.92 KiB) Viewed 333 times
- VasilevIvan
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Re: June 5 2021 CaK Ha 2827 2829
Amazing set Leo! Nice shoots of AR's 2827, 2829 and perfect image of FD in CaK!
Best regards, Ivan.
VANTIM. Two Brothers observatory.
Observatory Dome 2.85m
SolarMax II 60mm DS, SW MAK 150, SW 80 ED, TS-Optics 6'' f5,9, LightBridge 12'' // AZ-EQ6 Pro, HEQ-5 mount
DayStar Quark Chromosphere, Lunt CaK B1800, D-ERF Baader 6'' // ZWO ASI 174mm, ASI 183mm, ASI178mm, ASI462mc, Player-One Apollo-M MAX.
VANTIM. Two Brothers observatory.
Observatory Dome 2.85m
SolarMax II 60mm DS, SW MAK 150, SW 80 ED, TS-Optics 6'' f5,9, LightBridge 12'' // AZ-EQ6 Pro, HEQ-5 mount
DayStar Quark Chromosphere, Lunt CaK B1800, D-ERF Baader 6'' // ZWO ASI 174mm, ASI 183mm, ASI178mm, ASI462mc, Player-One Apollo-M MAX.