M42 Orion Nebula ( Visual Spectrum Synthetic LRGB using SHO Data Set )

[Startrek]

Further to my recent post of M42 Orion Nebula in SHO , I decided to post another version in Visual Spectrum Synthetic LRGB using my SHO data set.
Same details as before but this time used the Compose Module in Startools to map specific channels prior to processing.

L - Synthetic Luminance created from SHO loaded into Luminance channel
R - Synthetic Red created from Ha + Sii loaded into Red Channel
G - Oiii loaded directly into Green Channel
B - Oiii again loaded directly into Blue Channel

Luminance, Color set to L,RGB

This method is the closest way possible of creating a Synthetic LRGB image from SHO Narrowband Data.

Near the end of processing I used the Startools "Entropy Module" to enhance to detail and colour and give the image a lift. Entropy is only used on Narrowband data sets.

Astrobin link below for full resolution…..,

https://www.astrobin.com/71zmxh/


Thanks for Looking

Comments Welcome

Martin

[Leo.G]

That's a beautiful result Martin, except for a couple of images I usually end up with blow out at the crispy centre, your image is so finely detailed.


Was this captured in Sydney or down the south coast and did you get your mount problem down there resolved (electrical problem from memory)?


I'm trying to get a pier in now to play but I think the weather is going to be against me for a few days (pit has been dug for ages where I stand my mount and I don't want anything falling down the hole in the dark) and a lot of local businesses aren't open between Christmas and new years. The 600x600x50 prefab I was hoping to buy from Bunnings to hide the slab (to make the top 6 inches easily removable should the department of housing complain, I doubt they will) are no longer available, I either go full solid cube or build my own former, grab some weld mesh and cast my own.

[Startrek]

Thanks Leo
M42 was captured in good ol’ heavy light polluted Sydney ( the posted SHO version had all the capture details )
Startools does a remarkable job of taming the super bright core region without the need for super short subs and layering process.

I’m down the south coast at my holiday home until end of January.In regards to the 12” Goto Dob ,I’m armed with a new power supply , a second handcontroller with new curly cord , USB cables and a stack of info from Graeme from Skywatcher Australia who has suggested a few things to check to try and resolve the Az motor speed/ rate problem. I’ll probably tackle it next week when the kids and grandkids head back to Sydney after their holiday leave break.

Happy New Year !!
Martin

[Peter Ward]

The arrival of Orion and M42 in the evening sky certainly a sign that a new year is about to begin. 2024 seems to have raced by !
Your new rendition comes up well.
My much older effort (http://www.atscope.com.au/BRO/gallery450.html) probably needs a re-visit, but I'm happy to let it go through to the keeper for now. Let's hope the 2025 weather is more welcoming to M42 and the capturing of many other gems !

[Leo.G]

Good luck Martin!


Happy New Year!

[Startrek]

Thanks Peter,
Much appreciated
Yeh quite pleased with how Startools weaved its magic and create a synthetic LRGB image out of Narrowband data sets. Not perfect but good enough for the average Joe. I could have worked on the stars ( colour and halos ) a bit but decided to leave it.
The weather during 2024 on the East Coast NSW was average to say the least but late winter / early spring provided some good stable nights for imaging. Agree let’s hope 2025 is more kind to us all.
Happy Mew Year !
Martin

[Startrek]

Cheers Leo 👍