Solar Spectroscopy
- rsfoto
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Solar Spectroscopy
Hi,
I dusted off my good old LISA Spectrograph and I will start again doing spectroscopy but mainly stars, nebula and night time objects.
As a member of Spectro ARAS I just read about the new development from Christian Buil called Sol'EX a 3D printed solar spectrograph and it looks very interesting.
For all those being a member of Spectro ARAS you can read it here
http://www.spectro-aras.com/forum/viewt ... 094#p15094
Also in Astrosurf he presented the new Spectrograph
http://www.astrosurf.com/topic/142370-l ... -de-solex/
So far nothing is on his website yet http://www.astrosurf.com/buil/index.html
Here some images of it.
BTW just as an add on here a spectrum of a Nova in Perseus called Nova Per 2020 which I took on the night of December 3 2020
I dusted off my good old LISA Spectrograph and I will start again doing spectroscopy but mainly stars, nebula and night time objects.
As a member of Spectro ARAS I just read about the new development from Christian Buil called Sol'EX a 3D printed solar spectrograph and it looks very interesting.
For all those being a member of Spectro ARAS you can read it here
http://www.spectro-aras.com/forum/viewt ... 094#p15094
Also in Astrosurf he presented the new Spectrograph
http://www.astrosurf.com/topic/142370-l ... -de-solex/
So far nothing is on his website yet http://www.astrosurf.com/buil/index.html
Here some images of it.
BTW just as an add on here a spectrum of a Nova in Perseus called Nova Per 2020 which I took on the night of December 3 2020
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
- Montana
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- DeepSolar64
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Re: Solar Spectroscopy
And does anyone make a commercial ready-to-use solar spectroscope?
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! "
- Carbon60
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Re: Solar Spectroscopy
Thanks, Rainer.
I’m just finishing off my redesigned solar spectrometer, which I hope to give a test run next time we get some Sun here.
Stu.
I’m just finishing off my redesigned solar spectrometer, which I hope to give a test run next time we get some Sun here.
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/
- rsfoto
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Re: Solar Spectroscopy
Hi Alexandra,
I do not have a 3D printer. Some friends do have one but the printing quality is not good. I have a few pieces but honestly do not like the quality.
The point is not the 3D printer but to leran how to make the necessary files for 3D printing and so far I ahve not understood it yet
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
- rsfoto
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Re: Solar Spectroscopy
Hi Stu,
Waiting to see the results. Would you please post an image of your Solar spectroscope ? Thanks
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
- rsfoto
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Re: Solar Spectroscopy
Hi James,DeepSolar64 wrote: ↑Sun Dec 06, 2020 7:15 pm And does anyone make a commercial ready-to-use solar spectroscope?
Well the question here is if just a Solar spectroscope like this one
https://www.shelyak.com/solar-spectrum- ... 2/?lang=en
or a solar spectrohelioscope https://en.wikipedia.org/wiki/Spectrohelioscope in order to scan line wise the sun and build up an image ...
I have no experience in this regard and how this works but there is a wealth of info in the WWW
Shelyak is the best developped company so far as I know with this type of products in the wallet range of amateurs.
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
- rsfoto
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Re: Solar Spectroscopy
Hi,
Here is a spectrum of the Sun which I took with my slit spectrograph from Shelyak model LISA
The blue line is a professional spectrum and the red is my result. This is more or less a star spectrum.
Here is a spectrum of the Sun which I took with my slit spectrograph from Shelyak model LISA
The blue line is a professional spectrum and the red is my result. This is more or less a star spectrum.
Last edited by rsfoto on Mon Dec 07, 2020 4:46 pm, edited 1 time in total.
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
- Montana
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Re: Solar Spectroscopy
I'm guessing that the extra absorption dips you get are from our atmosphere?
Alexandra
Alexandra
- rsfoto
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Re: Solar Spectroscopy
Hi Alexandra,
Our atmosphere starts after 6800 Ångström
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
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- Merlin66
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Re: Solar Spectroscopy
Any slit spectrograph can be used to obtain a solar spectrum.
Just need to point it to a bright sky - no telescope required.
Add it to a telescope and you have a spectroheliograph.
To obtain spectrogram images, you scan the slit across the solar disk, select and isolate the line of interest ( CaK, Fe, Mg H beta, H alpha etc.) and extract and combine using Wah! Spectral line merge program.
Just need to point it to a bright sky - no telescope required.
Add it to a telescope and you have a spectroheliograph.
To obtain spectrogram images, you scan the slit across the solar disk, select and isolate the line of interest ( CaK, Fe, Mg H beta, H alpha etc.) and extract and combine using Wah! Spectral line merge program.
"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
- rsfoto
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Re: Solar Spectroscopy
Hi Ken,Merlin66 wrote: ↑Mon Dec 14, 2020 2:42 am Any slit spectrograph can be used to obtain a solar spectrum.
Just need to point it to a bright sky - no telescope required.
Add it to a telescope and you have a spectroheliograph.
To obtain spectrogram images, you scan the slit across the solar disk, select and isolate the line of interest ( CaK, Fe, Mg H beta, H alpha etc.) and extract and combine using Wah! Spectral line merge program.
That sounds good but
I guess I need an ERF in order to protect the Heat production or not ?Add it to a telescope and you have a spectroheliograph.
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
- Merlin66
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Re: Solar Spectroscopy
Rainer,
No ERF used.
The telescopes used are generally smaller refractors 100- 120mm.
We want to get as much light as we can through the very narrow slit gap and use very fast frame rates.
The heat build up on the slit plate doesn't appear to be an issue.
No ERF used.
The telescopes used are generally smaller refractors 100- 120mm.
We want to get as much light as we can through the very narrow slit gap and use very fast frame rates.
The heat build up on the slit plate doesn't appear to be an issue.
"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
- rsfoto
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Re: Solar Spectroscopy
Hi Ken,
I have a Takahashi TOA 130 in front of my LISA ...
This for me is already a suggestion not to try it ... so I better do not do it... slit plate doesn't appear to be an issue.
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
- Merlin66
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Re: Solar Spectroscopy
You could use (with a significant light loss) a Baader ND3.8 solar filter on the aperture.
Then you have absolutely no issues with possible heat loading.
An alternative would be to stop the aperture down to 60mm with a card disk/ ring.
The SimSpec SHG V1.3 allows you to assess the probable performance of the SHG.
Then you have absolutely no issues with possible heat loading.
An alternative would be to stop the aperture down to 60mm with a card disk/ ring.
The SimSpec SHG V1.3 allows you to assess the probable performance of the SHG.
"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: Solar Spectroscopy
Just a hint to new SHG users.....
How do you know if your slit gap is at the focus of the telescope?
Normal method is to check the top/ bottom edges of the solar spectrum being recorded. When in focus, they should appear tight and crisp.
A quick way to get you close....
Use a finder to look through the objective and check that the slit gap appears in clean focus.
Helps during initial set-up.
How do you know if your slit gap is at the focus of the telescope?
Normal method is to check the top/ bottom edges of the solar spectrum being recorded. When in focus, they should appear tight and crisp.
A quick way to get you close....
Use a finder to look through the objective and check that the slit gap appears in clean focus.
Helps during initial set-up.
"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