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6-24-21 H Alpha B/W with Orion ST120

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#1 astroflak88

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Posted 24 June 2021 - 05:09 PM

Used a 0.5X reducer in the process since I didn't have enough back focus to use it w/o a reducer.

 

gallery_232970_16850_3633260.png

 

 


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#2 gustavo_sanchez

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Posted 24 June 2021 - 05:11 PM

Wow, nice! What’s your setup, in addition to the 120mm? Capture details?


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#3 rigel123

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Posted 24 June 2021 - 07:41 PM

Looks great!


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#4 astroflak88

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Posted 24 June 2021 - 08:43 PM

Wow, nice! What’s your setup, in addition to the 120mm? Capture details?



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I had a UV/ir cut filter then the 0.5x reducer, then the quark Gemini in prominence mode, then an asi174mm. I used pipp, autostakkert, impg, and then gimp.

Took 1000 frames of chromosphere, 30 percent stacked. Took about 500 frames of prominence by upping the gain and stacked 30 percent. The skies was clear and sun was about at noon so it was high up.

Edited by astroflak88, 24 June 2021 - 10:01 PM.


#5 PhotonJohn

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Posted 24 June 2021 - 10:37 PM

Great reso AF88.


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#6 astroflak88

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Posted 25 June 2021 - 12:04 AM

The photo above is using the ST120. This one is using the ST80. In both scopes, I used the same configuration. You can clearly tell the ST120 yields way more detail, especially in the surface and prominence. But the ST80 still came out good. 

 

gallery_232970_16850_2986590.png


Edited by astroflak88, 25 June 2021 - 12:19 AM.

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#7 gustavo_sanchez

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Posted 25 June 2021 - 12:06 AM

So, if I understood correctly, you placed the reducer before the light enters the Quark? So the light rays were reduced to f5 to about f2.5 before they entered the Quark?


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#8 astroflak88

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Posted 25 June 2021 - 01:32 AM

So, if I understood correctly, you placed the reducer before the light enters the Quark? So the light rays were reduced to f5 to about f2.5 before they entered the Quark?


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Yes because the quark has a 4X barlow already built inside so in order to use that, you would have to have a extension tube to focus, which I had but didn't have enough back focus so i resorted to the reducer which obviously made the image smaller. The reducer didn't require me to have the extension tube. So yes, the light entering into the scope was reduced down from F5 to F2.5. I didn't have any diagonals installed on scope while imaging, its always straight though.


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#9 gustavo_sanchez

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Posted 25 June 2021 - 07:28 AM

Interesting. Thanks for sharing.


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