Sun in Ha and CaK 7th April 2021
- Carbon60
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Sun in Ha and CaK 7th April 2021
A couple of disks in Ha and CaK showing the Sun as of 7th April 2021. The seeing conditions were better than in recent days, but closer views were again made quite a challenge with lots of fine scale shimmering. I made one image in Ha of a small magnetically disturbed region. Other attempts just ended up blurred and in the bin.
First up is the disk in Ca II K presented in mono and colour formats.
20210407_CaK_FD by Stuart Green, on Flickr
20210407_CaK_FD_colour by Stuart Green, on Flickr
...and then over to Hydrogen Alpha, triple stacked on a Lunt 60. There's a bit of 'blooming' on the left which I failed to spot during capture, but adjusting the background to remove this takes away the proms, so I've left well alone.
20210407_Ha_FD by Stuart Green, on Flickr
20210407_Ha_FD_colour by Stuart Green, on Flickr
Here's the closer view of the small region captured on my 150mm/DS Lunt 35 mod.
20210407_Ha_chrom1_Mono by Stuart Green, on Flickr
I did try to image the main prom on display, but that just ended up a blurred mess under the seeing conditions at my location today.
Thanks for looking.
Stu.
First up is the disk in Ca II K presented in mono and colour formats.
20210407_CaK_FD by Stuart Green, on Flickr
20210407_CaK_FD_colour by Stuart Green, on Flickr
...and then over to Hydrogen Alpha, triple stacked on a Lunt 60. There's a bit of 'blooming' on the left which I failed to spot during capture, but adjusting the background to remove this takes away the proms, so I've left well alone.
20210407_Ha_FD by Stuart Green, on Flickr
20210407_Ha_FD_colour by Stuart Green, on Flickr
Here's the closer view of the small region captured on my 150mm/DS Lunt 35 mod.
20210407_Ha_chrom1_Mono by Stuart Green, on Flickr
I did try to image the main prom on display, but that just ended up a blurred mess under the seeing conditions at my location today.
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/
- dhkaiser
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Re: Sun in Ha and CaK 7th April 2021
Great results Stu! We woke to it white over with a skittering of snow this morning, has all since melted. Just cloud remains so a day of hifi I think instead...
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Re: Sun in Ha and CaK 7th April 2021
Fine images Stu with CaK being my favs..
Thanks for sharing
Terry
Thanks for sharing
Terry
- Stardust5858
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Re: Sun in Ha and CaK 7th April 2021
Lovely captures Stu, clouds here, thanks for sharing.
10ft x 6ft Solar RoR with Warm Room
Lunt 60mm Double Stack HA
80ed WL+ Lunt Hershal Wedge + Badder K-Line filter.
100mm AR + Lunt b1800 Ca-K module.
Neq6 Eq Mount.
2.7m Pulsar Dome.
11in Celestron SCT + White Light Filter.
70mm AR Stellavue.
12inch OO Newtonian.
Eq8 r Pro Mount.
Lunt 60mm Double Stack HA
80ed WL+ Lunt Hershal Wedge + Badder K-Line filter.
100mm AR + Lunt b1800 Ca-K module.
Neq6 Eq Mount.
2.7m Pulsar Dome.
11in Celestron SCT + White Light Filter.
70mm AR Stellavue.
12inch OO Newtonian.
Eq8 r Pro Mount.
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Re: Sun in Ha and CaK 7th April 2021
Very nice work Stu. The color Ha image shows the filaprom in the south very well.
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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
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- Carbon60
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Re: Sun in Ha and CaK 7th April 2021
Many thanks, everyone. Much appreciated. Back to clouds and rain here.
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: Sun in Ha and CaK 7th April 2021
Lovely discs Stuart, you are getting some might fine full discs now still no snow here
Alexandra
Alexandra
- Carbon60
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Re: Sun in Ha and CaK 7th April 2021
Many thanks, Alexandra. The new Lunt front etalon has certainly made a huge difference, especially in combination with the Coronado BF. Triple stacking gets close to optimal narrow bandwidth to meet my requirements for a much more even disk, including both surface and prom details in one take.
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: Sun in Ha and CaK 7th April 2021
Great images, Stu. Side reflections are an annoying problem with most filters, better to leave them, however, than sacrifice the detail.
Raf
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My solar images and reports with articles on solar equipment
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Re: Sun in Ha and CaK 7th April 2021
Many thanks, guys. Much appreciated.
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/