H-alpha and Ca-H closeup SHG images -- 6 Aug
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H-alpha and Ca-H closeup SHG images -- 6 Aug
We've been working to improve the imaging capabilities of our spectroheliograph. Here are some closeups in H-alpha and Ca-H taken on Aug 6. They are actually crops of full disk images, which can be found here viewtopic.php?t=37438, along with the imaging parameters. Click on the images to see at higher resolution.
Last edited by thesmiths on Tue Aug 09, 2022 8:55 pm, edited 1 time in total.
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Re: H-alpha and Ca-H closeup SHG images -- 6 Aug
The SHG does wonderfully. One rarely sees proms and filaments that well using a conventional CaH or CaK filter.
James
James
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Re: H-alpha and Ca-H closeup SHG images -- 6 Aug
All images are amazingly done. But the Ca-H crops are something special with 3-D effect popping out.
Bravo, Douglas!
You definitely need even a cheaper 150mm Cass as a feeder for Ca-II - I 854nm line! Seeing at 854nm will be remarcably better than at Ca-H and even than at H-a!
Valery
Bravo, Douglas!
You definitely need even a cheaper 150mm Cass as a feeder for Ca-II - I 854nm line! Seeing at 854nm will be remarcably better than at Ca-H and even than at H-a!
Valery
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
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Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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Re: H-alpha and Ca-H closeup SHG images -- 6 Aug
Absolutely incredible, you have raised the bar so high with the SHG
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Re: H-alpha and Ca-H closeup SHG images -- 6 Aug
Fantastic images Douglas, you are world leader with this.
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Re: H-alpha and Ca-H closeup SHG images -- 6 Aug
Nice close ups, Douglas!
James
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The Quark introduced me to this wonderful side of the hobby and the sun hasn’t disappointed yet.
Solar Equipment: Solar Spectrum RG-18 0.3A, Coronado Solarmax 90mm etalon Isle of Man SN-001, Tuscon SN-380 and Meade SM2, Lunt LS80 DS, Quark Chromosphere, Lunt 2" wedge, 2-Lunt CaK II 1200, Baader 3.8 and 5.0 solar film in 208mm cells, and 3D printed Sol'Ex SHG, Lunt 40mm
Coming Soon: Solar Spectrum CaK II <1A filter
These pretzels are making me thirsty! (C.C.)
The Quark introduced me to this wonderful side of the hobby and the sun hasn’t disappointed yet.
Solar Equipment: Solar Spectrum RG-18 0.3A, Coronado Solarmax 90mm etalon Isle of Man SN-001, Tuscon SN-380 and Meade SM2, Lunt LS80 DS, Quark Chromosphere, Lunt 2" wedge, 2-Lunt CaK II 1200, Baader 3.8 and 5.0 solar film in 208mm cells, and 3D printed Sol'Ex SHG, Lunt 40mm
Coming Soon: Solar Spectrum CaK II <1A filter
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Re: H-alpha and Ca-H closeup SHG images -- 6 Aug
Ditto!!marktownley wrote: ↑Tue Aug 09, 2022 12:12 pm Fantastic images Douglas, you are world leader with this.
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! "
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Re: H-alpha and Ca-H closeup SHG images -- 6 Aug
Wonderful images for an SHG, Douglas, congratulations.
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Re: H-alpha and Ca-H closeup SHG images -- 6 Aug
Superb! You certainly are leading the way.
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/