my first caH caK with open slit spectroscope

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highfnum
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my first caH caK with open slit spectroscope

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Re: my first caH caK with open slit spectroscope

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1898 version from C A Young "the sun'
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ChrisHalpha2017
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Re: my first caH caK with open slit spectroscope

Post by ChrisHalpha2017 »

woooaw!! really!!! thats really are amazing results!!!

How did you manage ? I tried yesterday with my grating blazes at 412nm for the UV and I couldnt get anything altough there were nice prominences!!

Did you have to refocus the collimator for UV (shorter focus lenght) ? did you have to remove the protective filter of the camera ?


spectro-coronographe ,Bresser 127/1200 ; Bresser 102/1350 , ASI 178MM
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Re: my first caH caK with open slit spectroscope

Post by rsfoto »

Superb


regards Rainer

Observatorio Real de 14
San Luis Potosi Mexico

North 22° West 101°
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Re: my first caH caK with open slit spectroscope

Post by highfnum »

i was a happy man today

a) look for prom in Ha
b) move grating to caK and H line
c) refocus primary scope so image focused on slit
d) raise exposure and gain on camera I used asi290mm until you see something

Did you have to refocus the collimator for UV (shorter focus lenght) ?
No just the primary telescope focus

did you have to remove the protective filter of the camera ?
No asi 290mm can "see" UV (at least a bit passed caK (I did plenty UV with SHG)

Thx
JP


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Re: my first caH caK with open slit spectroscope

Post by ChrisHalpha2017 »

thank you very much :)

its very sunny and real clear this afternoon in Paris.. 12h47 LT :)

i'm going to try again


spectro-coronographe ,Bresser 127/1200 ; Bresser 102/1350 , ASI 178MM
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Re: my first caH caK with open slit spectroscope

Post by highfnum »

bonne chance!


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