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Rayner spectroscope

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#1 pselaphid

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Posted 09 September 2019 - 07:49 PM

I have come into the possession of a vintage hand held spectroscope identical to the item seen here: 

https://www.worthpoi...scope-440725819

 

It's an adjustable slit spectroscope that allows you to point it at a light source and adjust the slit via a slider on the side to see the main spectral lines as you narrow the slit and look through the eyepiece. 

 

I am curious as to whether anyone has adapted one of these gadgets to either telescope visual or astrophotography/spectral analysis applications. 

 

It's fun to just walk around and point it at light sources, but might be more fun if you could point it at something through a telescope.

 

Thanks,

Chris


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#2 DAVIDG

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Posted 10 September 2019 - 08:51 AM

 Yes I have used these type of spectroscopes to observe spectra of stars. Since a star is a  point source you open the slit as wide as possible and place it over a wide field eyepiece. You will see the star and then  spectra as thin line off to the side of the star. You need a cylinder lens that you look thru  over the eyepiece of the spectroscope which expands the width the spectra so you'll be able to see the absorption lines in the spectra of a star..

 Goto made spectroscope for use in telescope  It came with three different power cylinder lens as eyepieces 

 

https://www.cloudyni...r-spectroscope/ and also B/C Optica  made   a couple versions as well  https://www.youtube....h?v=9roxxH2TAIA

   I have both and I also took a unit sold by Surplus Shed and made an adapter to use on my scopes. 

 

 

 

            - Dave 



#3 pselaphid

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Posted 10 September 2019 - 06:33 PM

Thanks! That's the sort of information I was seeking. I'll tinker with it when weather permits and report back.

 

Chris




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