ngc6888 Crescent Neb, TV NP127is Ha

[ChrisLX200]

This is the Ha stack from tonight's run, still have to process the OIII and SII (doesn't look to be much SII though).

Only had time for 4x15min subs, running out of darkness... Calibrated with darks, flats and bias.

NP127is (native f/5.2)

Atik 490EX @ 1x1

Losmandy G11 + Gemini L4

Processed in StarTools

100% crop of the interesting bit...

ChrisH

[ChrisLX200]

Oops.. wrong images. I must change the monitor in the Obs I use for image processing because every image looks so dark viewed elsewhere. Anyway, the correct versions:

ChrisH

[gingergeek]

very nice, admiring them over fresh ground coffee and toast is a good way to start a lazy Sunday...thanks for sharing.

[lensman57]

Looks grand Chris,

Regards,

A.G

[peter shah]

superb detail....nicely done

[ChrisLX200]

thanks everyone, I'm about to have a play with the OIII and SII data - but I've not attempted a NB composition before so who knows what it will look like

ChrisH

[ChrisLX200]

As suspected, hardly any SII signal so the result looks more bi-colour than anything.

[ollypenrice]

I love the nebulosity. Finely detailed and not over exposed on the bright edge, as easily happens. For me your stars are a bit hard and dark-ringed, maybe from sharpening or deconvolution? I generally exclude them from these processes.

But a very nice result from a super scope. (Not many of these in captivity!)

Olly

[ChrisLX200]

I love the nebulosity. Finely detailed and not over exposed on the bright edge, as easily happens. For me your stars are a bit hard and dark-ringed, maybe from sharpening or deconvolution? I generally exclude them from these processes.

But a very nice result from a super scope. (Not many of these in captivity!)

Olly

Thanks Olly, I think what happened with the stars is I failed to 'grow' the mask so it was a bit undersize for excluding the stars. I should resist doing image processing at 3:30am! Yes, there was some deconvolution performed on (what should have been) just the nebulous regions but the skinny mask has left a hard edge and caused some ringing. Ah well, there is lots of opportunity to re-process  

ChrisH

[ChrisLX200]

An attempt to render in Hubble palette, needs more OIII data!

ChrisH

[astro mick]

Very nice work there Chris.

Lots of information,and nebulosity.

Some objects seem very weak in o111.

Mick.

[FranckiM06]

Very nice and good work about the process. I like the Ha version. I have done about the same version with my setup

Franck

[cosmicdonkey]

Very nice collection of images not really a fan of the Hubble palette on this target but am really liking yours