20140405 SHG Sun
- marktownley
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Re: 20140405 SHG Sun
Oh yes! Very impressive Wah!
What is the FWHM of the second image?
What is the FWHM of the second image?
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Re: 20140405 SHG Sun
I am not sure about the real FWHM of my images, I guess it is quite far from ideal.
I just measured that Sodium double lines are 57 pixels separated, I always use one pixel width to merge the spectral lines.
I just measured that Sodium double lines are 57 pixels separated, I always use one pixel width to merge the spectral lines.
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Re: 20140405 SHG Sun
Hi Wah
congratulations, just wonderful
congratulations, just wonderful
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Re: 20140405 SHG Sun
Wah,
You have certainly come along way with your SHG in the past few months.
Well done!
The Sodium doublet is 6A apart (5890>5896A), with 57 pixels this gives a dispersion of 0.1A and a probable resolution close to 0.2A
You have certainly come along way with your SHG in the past few months.
Well done!
The Sodium doublet is 6A apart (5890>5896A), with 57 pixels this gives a dispersion of 0.1A and a probable resolution close to 0.2A
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Re: 20140405 SHG Sun
You have mastered removing many of the worst artifacts and the images really are starting to look photographic in quality. The Mg image is outrageous, looks like a weak calcium image.
Chris
Chris
Chris Schur
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Re: 20140405 SHG Sun
My .....!!! these are good, you are amazing Wah to build such a fantastic instrument, can't you make one for all of us
Alexandra
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- DSobserver
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Re: 20140405 SHG Sun
send PMWah wrote:I it not easy to make one now, because the slits are out of stock! @.@||
- p_zetner
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Re: 20140405 SHG Sun
Nice images, Wah.
Is that a Ca 4226A image? Surprising contrast in the faculae - even more than the Mg b line.
Peter.
Is that a Ca 4226A image? Surprising contrast in the faculae - even more than the Mg b line.
Peter.
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Re: 20140405 SHG Sun
you should have received at your email adress you gave for your profile....Wah wrote:I have tried, but didn't find where to send a PM
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Re: 20140405 SHG Sun
Guys,
I currently hold stocks of the Surplus Shed Adjustable slit assemblies.
If you need one, they are $25 plus postage.
Let me know.
kenm(dot)harrison(at)gmail(dot)com
I currently hold stocks of the Surplus Shed Adjustable slit assemblies.
If you need one, they are $25 plus postage.
Let me know.
kenm(dot)harrison(at)gmail(dot)com
"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: 20140405 SHG Sun
I captured this line by mistake, I was actually wanted to find the H-delta linep_zetner wrote:Nice images, Wah.
Is that a Ca 4226A image? Surprising contrast in the faculae - even more than the Mg b line.
Peter.