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M45 Pleiades Cluster - First Nebulosity processing

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12 years 1 month ago #95597 by wbean
Hi Friends,
Got a nice clear night recently and managed to get some nice
data of M45 to go with my new copy of Nebulosity.

I'm having a few initial niggles with processing but I'm quite pleased with
what came out the other end.



OTA: WO 72mm Megrez w/ Moonlite Focuser & SkyWatcher FF & LPR Filter
Camera: Nikon D3100 14.2mp
Mount: HEQ5 Pro
Lights: 15x60sec
darks: 15x60sec
ISO: 1600

Basically, my stacked results of M45 are coming out pretty much mono although the blue
nebulosity is clearly visible in the raw images. I'm obviously doing something wrong
in one of the steps. I'm following Craig Starks tutorials on the Stark website.

Does anyone have any suggestions? *ahem* Simon!
Please and thank you

Will

www.skelligstarparty.com
Live each week like it's space week!

OTA: WO 72mm Megrez, Skymax 127
Mount: HEQ5 Pro w/ EQMOD

BLOG: astronomybox.blogspot.com/

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12 years 1 month ago #95598 by CarlightExpress
Replied by CarlightExpress on topic Re: M45 Pleiades Cluster - First Nebulosity processing
William

You need to convert the RAW images to colour, this is what I do

1. Process the images against Dark and Flat Master frames
2. Demosaic and Colour images
3. Stack

I use Nebulosity 2 to pre process them which converts them to colour

Simon
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12 years 1 month ago #95599 by wbean
Thanks Simon,
What I did was:
Applied the master dark (No flats)
Normalized intensity
Demozaic+square raw colour
Align
Stack

Right from the beginning of my processing it seems to be in mono.
Are there any preferences/settings that might need changing, perhaps?

Will

www.skelligstarparty.com
Live each week like it's space week!

OTA: WO 72mm Megrez, Skymax 127
Mount: HEQ5 Pro w/ EQMOD

BLOG: astronomybox.blogspot.com/

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12 years 1 month ago #95600 by CarlightExpress
Replied by CarlightExpress on topic Re: M45 Pleiades Cluster - First Nebulosity processing
How are you acquiring your images?

After I have processed the images against Dark and Flat Master, I do not do anything else with the image except run the "Batch Demosaic + Square RAW Color"

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  • wbean
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12 years 1 month ago #95601 by wbean
My images are raw NEF files from my Nikon D3100, which I'm putting
straight into Nebulosity.

Will

www.skelligstarparty.com
Live each week like it's space week!

OTA: WO 72mm Megrez, Skymax 127
Mount: HEQ5 Pro w/ EQMOD

BLOG: astronomybox.blogspot.com/

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12 years 1 month ago #95602 by CarlightExpress
Replied by CarlightExpress on topic Re: M45 Pleiades Cluster - First Nebulosity processing
Can you do a WebEX with me where I can take a look?

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