M27 Hubble Palette

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Alnitak
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Sat Nov 24, 2018 1:47 am

Image

11/23/18 M27 during the Full Moon.....from the Las Vegas suburbs.
10x3min each Ha, SII, OIII
Explore Scientific ED127mm f7.5 APO, ZWO ASI1600mm Camera, Baader Narrowband Filters, 30 minutes total per filter
Captured and initial processing in Prism, final tweaking in Photoshop CS2019.
E.S. 127mm ED, SV70T, Celestron CGX, ZWO ASI1600mm w/ Baader LRGB Ha OIII SII filters, Orion 50mm guide scope with S.S.A.G.

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Hamza Touhami
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Sat Nov 24, 2018 10:31 am

That is awesome Greg, can you share your exposure details please?
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Alnitak
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Sat Nov 24, 2018 2:54 pm

10x3min each Ha, SII, OIII
30 minutes total each filter.
E.S. 127mm ED, SV70T, Celestron CGX, ZWO ASI1600mm w/ Baader LRGB Ha OIII SII filters, Orion 50mm guide scope with S.S.A.G.

“The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.” - Carl Sagan
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Hamza Touhami
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Sat Nov 24, 2018 3:38 pm

it is quite impressive for that short of integration time, makes you wonder what it would like with 10 hours for each channel
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Alnitak
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Sun Nov 25, 2018 5:55 pm

Re-Processed the same data with different results, this time, entirely in Prism. Better? I guess it's subjective but you can see more of the fine, wispy detail outside the main portion of the nebula in this version and there appear to be more stars.

Again, same data. 10 x 180 seconds for the Ha and OII filter and 9 x 180 seconds of SII (Prism rejected one of the SII images for elongated stars.) Ha, SII, OIII using the Hubble palette where SII is Red, Ha is Green, and OIII is Blue.

Image
E.S. 127mm ED, SV70T, Celestron CGX, ZWO ASI1600mm w/ Baader LRGB Ha OIII SII filters, Orion 50mm guide scope with S.S.A.G.

“The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.” - Carl Sagan
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Hamza Touhami
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Tue Nov 27, 2018 12:15 pm

that is a lot more detail, did you DDP the image?
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Alnitak
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Tue Nov 27, 2018 12:19 pm

Yes....

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E.S. 127mm ED, SV70T, Celestron CGX, ZWO ASI1600mm w/ Baader LRGB Ha OIII SII filters, Orion 50mm guide scope with S.S.A.G.

“The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.” - Carl Sagan
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