Markarian's Chain [WIP] | Astrobiscuit | Page 1

fickle night Mar 31, 2024, 6:08 PM

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Want to add ~4 more hours of data to this + hydrogen - but for now this is what I've got. I do wish I framed it up better but unfortunately it's too late now (cropped out the unnecessary parts of it).

Acquisition:
88x300s w/ Optolong UV/IR Cut (7hrs 20min) (-10*C)
ASIAIR Plus
Gear:
Mount: ZWO AM-5
Main Scope: William Optics Zenithstar 61 @ 360mm FL
Camera: ZWO ASI533MC Pro
Guide Scope: William Optics 50mm Guidescope @ 200mm FL
Guide Camera: ASI220MM Mini
Auto-Focuser: ZWO EAF
Processing
Pixinsight w/ RC-Astro Plugins
DeepSNR
Conditions:
Bortle 4 (mag. 21.56)

flint mortar Mar 31, 2024, 6:42 PM

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Oh shit

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This is looking solid so far

fickle night Mar 31, 2024, 6:46 PM

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i’m definitely gonna use all the clear nights i can get on this
i’m limited on when i can shoot it since my house isn’t the best spot for objects under +30° declination

fast ibex Mar 31, 2024, 7:11 PM

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'Ery Noice! Zooming in on the largest elliptical galaxy here, are the red particle bits just noise or true detail? They almost look like gas filaments but I'm sure they're probably noise

flint mortar Mar 31, 2024, 7:13 PM

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Noise

fickle night Mar 31, 2024, 7:17 PM

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yeah i’ve found deepsnr leaves them but noisex doesn’t thonk

flint mortar Mar 31, 2024, 7:19 PM

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If the image is prepared properly than deepsnr should remove everything

fickle night Mar 31, 2024, 7:22 PM

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hmm

i’ve been doing the drizzle integration (1x) through WBPP - should I do it the separate way with WBPP -> ImageIntegration -> DrizzleIntegration instead?

flint mortar Mar 31, 2024, 7:31 PM

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Was that image above with deepsnr?

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Like dialed down a lot or something?

fickle night Mar 31, 2024, 7:34 PM

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i had it at 75 iirc

maybe 70

fickle night Apr 3, 2024, 3:24 PM

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flint mortar Was that image above with deepsnr?

did a new process with a less aggressive saturation stretch. I think that solved it & i have a far superior variant of it.

flint mortar Apr 3, 2024, 7:58 PM

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That's lovely

stark sierra Apr 5, 2024, 1:39 PM

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Did you have any trouble bringing out your star color? I'm finding my stars and even the elliptical galaxies to look almost monochrome coming out of deep sky stacker with my GT81. I'm shooting with a Canon R6 so it should have pretty strong colors.

I'm wondering also if it is DSS just trying to balance the histogram. My flats and darks are a little blue in case that matters.

flint mortar Apr 5, 2024, 8:16 PM

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Your gonna want to separate stars via starnet++ and saturate the stars only image until star color becomes more pronounced. You can saturate the starless image as well but not too heavily.

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Separating the two enables you to avoid exaggerating color noise while still getting good star color.

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Also no matter the camera your star color vibrancy will be mostly the same, considering other conditions are the same. You always have to saturate a bit to get vibrant star color.

stark sierra Apr 6, 2024, 3:20 AM

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flint mortar Your gonna want to separate stars via starnet++ and saturate the stars only imag...

I'll give that a shot! I have been splitting them in starnet++ but I didn't make a stars only from it.

fickle night Apr 6, 2024, 1:08 PM

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Starnet’s a little goofy - if you’re using pixinsight check the ‘create star mask’ box and it’ll make one

stark sierra Apr 6, 2024, 6:12 PM

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Im using photoshop so I usually subtract the starless from the full if I want stars only. I plan to try and get some Ha data when our winds die down in a week (40mph sustained 60mph gust). The only problem is it is a different pixel count, same full frame size though. I know DSS is unable to stack frames from different cams. Is there a program that can combine multiple cameras?

#Markarian's Chain [WIP]