someyhing very different with my SHG
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someyhing very different with my SHG
I know this is a solar forum
I did not know where to post
and besides who else knows about SHG
I took lunar SHG in sodium light
congrats to Wah! -- program handled image
each exposure was over 1 second thats why resolution not so good
used DMK camera
Merlin66 - has anyone tried this before?
south is left
i notice a few areas glowing brighter in sodium light
any significance?
I did not know where to post
and besides who else knows about SHG
I took lunar SHG in sodium light
congrats to Wah! -- program handled image
each exposure was over 1 second thats why resolution not so good
used DMK camera
Merlin66 - has anyone tried this before?
south is left
i notice a few areas glowing brighter in sodium light
any significance?
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- marktownley
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Re: someyhing very different with my SHG
That is interesting - I guess you could 'geologically map' the moon like this using a range of wavelengths - very interesting indeed!
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!
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Re: someyhing very different with my SHG
JP,
I remember saying back in early July that I thought the SHG could, with suitable sized telescopes, be used for bright night time objects - Jupiter was mentioned.
As far as I can determine you are the first to record the Moon using an SHG!!!
This may encourage others to do similar trials......
Well done, a monumental achievement - another step along the long hard road to future SHG successes.
Onwards and Upwards.
(EDIT) the guys on the Astronomical Spectroscopy forum have corrected me! There have been various successful spectrographic scans of planets and nebula over the past few years....
http://astrosurf.com/joseribeiro
http://www.astrosurf.com/buil/scan/demo.htm
I remember saying back in early July that I thought the SHG could, with suitable sized telescopes, be used for bright night time objects - Jupiter was mentioned.
As far as I can determine you are the first to record the Moon using an SHG!!!
This may encourage others to do similar trials......
Well done, a monumental achievement - another step along the long hard road to future SHG successes.
Onwards and Upwards.
(EDIT) the guys on the Astronomical Spectroscopy forum have corrected me! There have been various successful spectrographic scans of planets and nebula over the past few years....
http://astrosurf.com/joseribeiro
http://www.astrosurf.com/buil/scan/demo.htm
Last edited by Merlin66 on Fri Nov 27, 2015 3:36 am, edited 1 time in total.
Reason: added info
Reason: added info
"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: someyhing very different with my SHG
not the first
i see a that this was done by a few others
before me including jupiter
but not many
i see a that this was done by a few others
before me including jupiter
but not many
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Re: someyhing very different with my SHG
Hmmm
Well they used "conventional" spectrographs, with wider slits and wider bandwidths, not the SHG configuration we'd use for solar.....
Well they used "conventional" spectrographs, with wider slits and wider bandwidths, not the SHG configuration we'd use for solar.....
"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: someyhing very different with my SHG
thx and ok
on a more narrow definition, I'll take that
the trick was to use fast optics and using dmk camera that
is a ccd not cmos -- more sensitive
on a more narrow definition, I'll take that
the trick was to use fast optics and using dmk camera that
is a ccd not cmos -- more sensitive
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Re: someyhing very different with my SHG
I hope other will try like Wah! Zetner DSobserver
since they make very smooth images
since they make very smooth images
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Re: someyhing very different with my SHG
Interesting result.
The following link on "lunar petrographic imaging" might be informative for you.
http://www.rkblog.rk.edu.pl/w/p/lunar-p ... ge-colors/
Also, the full text of "Manual for Lunar Spectral Work" (Selenology Today #19) is downloadable at:
http://www.lunar-captures.com/SelenologyToday.html
The lunar minerals all have reflectances which vary with wavelength, so spectral imaging provides information about the Moon's mineral composition. The variation with wavelength is slow, though. There don't seem to be any narrow absorption features. In this respect, the SHG might be pretty serious overkill! Simple bandpass filters will be far more efficient.
On the other hand, who knows. Maybe you'll discover something new and amazing!
The following link on "lunar petrographic imaging" might be informative for you.
http://www.rkblog.rk.edu.pl/w/p/lunar-p ... ge-colors/
Also, the full text of "Manual for Lunar Spectral Work" (Selenology Today #19) is downloadable at:
http://www.lunar-captures.com/SelenologyToday.html
The lunar minerals all have reflectances which vary with wavelength, so spectral imaging provides information about the Moon's mineral composition. The variation with wavelength is slow, though. There don't seem to be any narrow absorption features. In this respect, the SHG might be pretty serious overkill! Simple bandpass filters will be far more efficient.
On the other hand, who knows. Maybe you'll discover something new and amazing!
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Re: someyhing very different with my SHG
A great result and as the light is reflected Sunlight very relevant to what we all do.