NGC 5139 Omega Centauri

[Startrek]

Captured a quick Omega as its well placed after dark
Used my new TS Optics GPU coma corrector again
85% waning moon
Bortle 7/8
6” f6 Bintel GSO newt
EQ6-R pro mount
ZWOASI2600MC set in Ascom again 100 , cooled to -10C
36 x 90 sec dithered guided subs
30 x Flats
30 x Bias
EQMOD, Stellarium, APT
Stacked in DSS
Processed in Startools V1.7 OSC Linear data set

ST Workflow ( duration 20 mins )
AutoDev first stretch for inspection
Bin 71%
Crop edges for stacking artefacts
Wipe default
AutoDev final stretch
Contrast default
HDR core only
Colour Scientific ( colour constancy ) RGB ratio
Noise reduction 4 pixels
Finish
Save

Original frame ( 1.6MB reduced by IIS to 220KB )
Crop frame ( 1.1MB reduced by IIS to 213KB )

Comments welcome
Thanks

[Stephane]

Martin, those stars look great. Not bloated at all. I am amazed at what you’ve managed to produce with less than an hour of integration and 20 minutes of processing. I also appreciate you sharing the technical details of acquisition and processing.

[Retrograde]

Looks good for a relatively quick capture in light-polluted skies.
Star shapes look good to me. This hobby is a process of continuous step-by-step improvements.

[Dave882]

Martin that’s a really stunning shot! Tight and colourful and quality stars all the way to the corners. I can really loose myself in the detail of this one! Its great that you’ve been able to dial this new corrector in so quick. Well done!!

[AdamJL]

Very nice, Martin
StarTools does a great job on globs, in my opinion.

Is there a gradient from left to right on your wider FOV shot? Or is that background dust?

[RyanJones]

Love the star colour Martin. Very nice

[Ryderscope]

A fine Omega Centauri Martin. We never get tired of this wonderful globular.

CS,
Rodney

[Bobbyoutback]

Wow !
Great pic with just a 6" in not the best sky's .

Bobby

[xelasnave]

Excellent on all fronts in my view Martin and frankly I could not be be impressed more if the weather was perfect..but of course it is not so well done and again you demonstrate the excellent performance delivered by a 6 inch Newtonian at F6.

alex

[Startrek]

Thanks Stephane
Can’t beat a newt when it comes to big clusters
Again it’s a pleasure to use Startools
Cheers
Martin

[Startrek]

Thanks Pete,
You should have seen the first stretch , what a mess with al that moon glare gradient and LP gradient but Startools came to the rescue and cleaned 99% of it up.
Really happy with the new TS GPU CC
Martin

[Startrek]

Thanks Adam,
Yeh there’s a tad of residual gradient / vignetting on the left side , you have a very good eye
I could have used Isolate in the Super structure module to eliminate it but , it was a quick process
ST does a great job on everything but I must admit the colour module is a works in progress, however it is getting more versatile
Cheers
Martin

[Startrek]

Thanks Ryan
Appreciate your advice on the TS GPU CC
Love it
Martin

[Startrek]

Thanks Rodney
It’s a fantastic cluster and really enjoy imaging it , but 47 Tuc is my personal favourite
Cheers
Martin

[Startrek]

Cheers Bobby
Its a struggle imaging under a full moon, bortle 7/8 LP skies and adjoining neighbours floods lights
The 6” newt is a great scope , not popular but does the job
I’m very fortunate to have my Dome on the south coast NSW under Bortle 3 skies , it’s nirvana compared to Sydney
Martin

[Startrek]

Alex
Thanks
Much appreciated
Yes we both keep talking about the humble 6” newt , I don’t know why beginners more times than not opt for the ED80 or similar
The f6 gives you a little more focal length and wider field which works well on most DSO objects plus dabble in some planetary as well
Cheers
Martin