Sunday Sun 25th April 2021
- Carbon60
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Sunday Sun 25th April 2021
The seeing conditions were okay for full disks, but not great for magnified views, but I had to give it a go on the 150 mm/DS Lunt 35 mod just to get a good look at the major active regions on the active Sun. Cycle 25 is kicking in nicely.
First up are the FDs in Ha and Ca II K. My triple stacked Lunt 60 seems to be performing well, especially with the Coronado BF15.
Ca II K FDs in mono and colour with AR12818 AR12820 towards the centre of the disk looking great, each within their respective pool of bright plage.
20210425_CaK_FD_mono by Stuart Green, on Flickr
20210425_CaK_FD_colour by Stuart Green, on Flickr
...and in Ha with lots going on in terms of ARs, filaments and proms. It makes such a nice change from imaging blank disks
20210425_Ha_FD_Mono by Stuart Green, on Flickr
20210425_Ha_FD_colour by Stuart Green, on Flickr
Finally, a closer view of Active Regions AR12818 and AR12820 on the 150 mm with seeing getting worse by the minute.
20210425_Ha_AR2818_AR2820 by Stuart Green, on Flickr
That's about it for today.
Thanks for looking.
Stu.
First up are the FDs in Ha and Ca II K. My triple stacked Lunt 60 seems to be performing well, especially with the Coronado BF15.
Ca II K FDs in mono and colour with AR12818 AR12820 towards the centre of the disk looking great, each within their respective pool of bright plage.
20210425_CaK_FD_mono by Stuart Green, on Flickr
20210425_CaK_FD_colour by Stuart Green, on Flickr
...and in Ha with lots going on in terms of ARs, filaments and proms. It makes such a nice change from imaging blank disks
20210425_Ha_FD_Mono by Stuart Green, on Flickr
20210425_Ha_FD_colour by Stuart Green, on Flickr
Finally, a closer view of Active Regions AR12818 and AR12820 on the 150 mm with seeing getting worse by the minute.
20210425_Ha_AR2818_AR2820 by Stuart Green, on Flickr
That's about it for 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/
- solardave
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Re: Sunday Sun 25th April 2021
very nice
tak 102fs solarmax40 ds es ed80 cornado 90mm filter bf10 bf 30 skynyx 2-2 mono camera lunt 2inch wl wedge lunt b1800 cak mod
- ffellah
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- Carbon60
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Re: Sunday Sun 25th April 2021
Many thanks, guys. I appreciate your comments.
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: Sunday Sun 25th April 2021
As Peter, I also am a fan of your excellent captures Stu.
Thanks for sharing
Terry
Thanks for sharing
Terry
- marios i.
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Re: Sunday Sun 25th April 2021
Very nice images!
Marios S.Ioannou
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- marktownley
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Re: Sunday Sun 25th April 2021
These are really nice Stu, the TS is a top performer, what's exposure time like?
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- AJamesB
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Re: Sunday Sun 25th April 2021
Great detail in spite of the seeing! I had similar issues with seeing and only managed a full disc, tried going in further and it was larger blur, lol. Well done!
Lunt ls100tha single stacked + hinode solar guider on ioptron cem26 mount
asi178mm
asi294mm
2x, 3x, and 4x telecentrics
0.6x and 0.4x telecompressors
asi178mm
asi294mm
2x, 3x, and 4x telecentrics
0.6x and 0.4x telecompressors
- Martin_S
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Re: Sunday Sun 25th April 2021
A great result Stu in spite of the seeing.
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
- Carbon60
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Re: Sunday Sun 25th April 2021
Hi Mark,marktownley wrote: ↑Mon Apr 26, 2021 7:01 am These are really nice Stu, the TS is a top performer, what's exposure time like?
Still pretty respectable at 10-15ms. Sometimes I add a little gain if the seeing is on the poor side so as to keep the exposure time down.
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/
- MAURITS
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