PST stage 4. The X-truder

Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times...
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marktownley
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Re: PST stage 4. The X-truder

Post by marktownley » Thu May 24, 2018 5:03 am

Cool mod!
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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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MalVeauX
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Re: PST stage 4. The X-truder

Post by MalVeauX » Sat Jun 16, 2018 8:00 pm

Getting interesting! Looking forward to seeing the image results!

Very best,

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Merlin66
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Re: PST stage 4. The X-truder

Post by Merlin66 » Sun Jun 17, 2018 1:11 am

To turn it into a digital spectroheliograph you don't need an exit slit on the spectrograph section....in fact a Littrow spectrograph design would be cheaper and probably more efficient.
viewtopic.php?f=8&t=20682
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.yahoo.com/neo/groups/ast ... scopy/info
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Merlin66
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Re: PST stage 4. The X-truder

Post by Merlin66 » Sun Jun 17, 2018 8:24 am

I think you’ll find a laser collimator is much more accurate.
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.yahoo.com/neo/groups/ast ... scopy/info
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Merlin66
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Re: PST stage 4. The X-truder

Post by Merlin66 » Sun Jun 17, 2018 10:02 am

I ended up making my own based on a laser pointer and a 1.25” extension.
This proved to be more accurate than the commercial unit.
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.yahoo.com/neo/groups/ast ... scopy/info
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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marktownley
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Re: PST stage 4. The X-truder

Post by marktownley » Sat Jun 23, 2018 6:59 am

Interesting to see how this develops!
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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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marktownley
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Re: PST stage 4. The X-truder

Post by marktownley » Fri Jun 29, 2018 7:41 pm

That's impressive! Looks like you were drifting rather than tracking?
Image
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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