MiniSHG and CaK Solar 16th Sept 2021
- Merlin66
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MiniSHG and CaK Solar 16th Sept 2021
The MiniSHG is giving some good results.
The current data is from 9 sec scans (in Declination) and processed in EN_INTI software (about 3 sec per image!!!!)
The first image is a typical scan result - no additional processing. The scan also provides a Prominence image - neat!!
This is a stack (AS3!) of four 9sec scan images I think the results are very good and would certainly be improved with a larger stack.
The current CaK status is pretty quiet. The AR is just leaving the building! (I will do some comparison images between the MiniSHG and the CaK DIY filter. I have a feeling that the MiniSHG might win!!)
The current data is from 9 sec scans (in Declination) and processed in EN_INTI software (about 3 sec per image!!!!)
The first image is a typical scan result - no additional processing. The scan also provides a Prominence image - neat!!
This is a stack (AS3!) of four 9sec scan images I think the results are very good and would certainly be improved with a larger stack.
The current CaK status is pretty quiet. The AR is just leaving the building! (I will do some comparison images between the MiniSHG and the CaK DIY filter. I have a feeling that the MiniSHG might win!!)
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- Merlin66
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Re: MiniSHG and CaK Solar 16th Sept 2021
You can also select different wavelengths by a pixel offset.
This shows the results in the red wing at +0.4A
This shows the results in the red wing at +0.4A
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- DeepSolar64
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Re: MiniSHG and CaK Solar 16th Sept 2021
it's unusual to see Ca II K so quiet.
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Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
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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! "
- Merlin66
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Re: MiniSHG and CaK Solar 16th Sept 2021
Yeah, very quiet. I haven't seen it like this for a while.
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- Montana
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Re: MiniSHG and CaK Solar 16th Sept 2021
Wow!! amazing images do you have a photo of the miniSHG?
Alexandra
Alexandra
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Re: MiniSHG and CaK Solar 16th Sept 2021
Beautiful images!
Marios S.Ioannou
My Gallery https://www.flickr.com/photos/195609307@N07/albums
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- marktownley
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Re: MiniSHG and CaK Solar 16th Sept 2021
Very good Ken!
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!
- Merlin66
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Re: MiniSHG and CaK Solar 16th Sept 2021
Alexandra,
The MiniSHG uses two 120mm FL lenses from Surplus Shed, a 2400 l/mm grating, a 20 micron slit gap (Ex my Spectra-L200) and the ASI 178 camera.
The MiniSHG fits the hand and weighs just over 1Kg. For comparison here's an SHG I built only five years ago over 1 mtr length and over 11Kg weight. Times have changed!!
The MiniSHG uses two 120mm FL lenses from Surplus Shed, a 2400 l/mm grating, a 20 micron slit gap (Ex my Spectra-L200) and the ASI 178 camera.
The MiniSHG fits the hand and weighs just over 1Kg. For comparison here's an SHG I built only five years ago over 1 mtr length and over 11Kg weight. Times have changed!!
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
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Re: MiniSHG and CaK Solar 16th Sept 2021
The "CaK with DIY filter 091840.jpg" is my favourite Ken and interesting set-up's
Thanks for sharing
Terry
Thanks for sharing
Terry
- DeepSolar64
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Re: MiniSHG and CaK Solar 16th Sept 2021
Ken,
I think you miniaturized this time around!
James
I think you miniaturized this time around!
James
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! "
- Merlin66
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Re: MiniSHG and CaK Solar 16th Sept 2021
Terry,
Thanks mate.
It looks even better at full resolution.
James,
This is certainly the way forward for SHG.
The advent of high speed, small pixel Cmos cameras, combined with very narrow slit gaps (10 micron) has definitely changed our ideas.
As I said in the Preface to my book "Imaging Sunlight" in 2016:
""....it's just a matter of time before the software matures to further refine the images and show the full potential, at any chosen wavelength, of the digital SHG""
9 sec scans and 3 sec processing to a detailed image
It's time has come!!!!
Thanks mate.
It looks even better at full resolution.
James,
This is certainly the way forward for SHG.
The advent of high speed, small pixel Cmos cameras, combined with very narrow slit gaps (10 micron) has definitely changed our ideas.
As I said in the Preface to my book "Imaging Sunlight" in 2016:
""....it's just a matter of time before the software matures to further refine the images and show the full potential, at any chosen wavelength, of the digital SHG""
9 sec scans and 3 sec processing to a detailed image
It's time has come!!!!
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- Montana
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Re: MiniSHG and CaK Solar 16th Sept 2021
WOW!!! it is soon getting to a point even a dumb person like me may be able to have one
Alexandra
Alexandra
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Re: MiniSHG and CaK Solar 16th Sept 2021
Alexandra,
I don't think for one moment you're "dumb"!!!
Yes, I'm pretty sure the MiniSHG (or similar) will be commercialised in the near future.
It's compact design is pretty robust and flexible enough to be used on most refractors.
Operation is very simple focus the spectrum, focus on the solar edge and then the final tweak to fine focus on the "wiggles" inside the absorption line. Majic!!!
I don't think for one moment you're "dumb"!!!
Yes, I'm pretty sure the MiniSHG (or similar) will be commercialised in the near future.
It's compact design is pretty robust and flexible enough to be used on most refractors.
Operation is very simple focus the spectrum, focus on the solar edge and then the final tweak to fine focus on the "wiggles" inside the absorption line. Majic!!!
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- Carbon60
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Re: MiniSHG and CaK Solar 16th Sept 2021
Excellent, Ken. Certainly is nice and compact.
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/
- Merlin66
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Re: MiniSHG and CaK Solar 16th Sept 2021
Bang per wavelength buck this is definitely the way to go.
Where else would you find a 0.2A resolution filter for CaK H alpha and every wavelengths between for less than $700 ??????
Where else would you find a 0.2A resolution filter for CaK H alpha and every wavelengths between for less than $700 ??????
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- Merlin66
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Re: MiniSHG and CaK Solar 16th Sept 2021
I can supply a detailed parts list of all the components needed to assemble a MiniSHG.
Drop me a PM or email for details.
Drop me a PM or email for details.
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- galaxie427
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Re: MiniSHG and CaK Solar 16th Sept 2021
Just admiring your wonderful results. Your project sent me back in time to a good place, Astronomy 101 and our slit spectrometer project, Merlin....Thank you!