California Nebula - Ha - WIP

[TakMan]

Yet another play, this time around 40mins worth (!) and tried stand-a-lone StarNet++ on OSX... hence the star halo artefacts 🤨 but we're getting there.

21x 1200 seconds, Chroma 3nm Ha, Dark and flat frame calibrated (and aligned/stacked in APP). FSQ106ED @ f/5 - Atik 16200M (running at -20ºC)

Pleased with how the camera is performing and the new filters...

Damian

Do the clicky thing for the full size jpeg (slight crop after stacking)

 

 

[Laurin Dave]

Nice..  great camera, I have the SX version.  Gives great star colour and those lovely little diffraction spikes 

[tooth_dr]

Very very nice Damian.  The 3nm filter doing the business then!

[TakMan]

Yes Adam - very pleased.

There is no sign of any halo (aka - Baader !) and the extra transmission of the Chroma filters is obvious on each individual sub...

Very little in terms of pollution / lunar gradients to contend with as well (I'm bortle 6) although there was not much moon when these were taken.

I've (sort of) forgotten about the price now!

D

[tooth_dr]

9 minutes ago, TakMan said:

Yes Adam - very pleased.

There is no sign of any halo (aka - Baader !) and the extra transmission of the Chroma filters is obvious on each individual sub...

Very little in terms of pollution / lunar gradients to contend with as well (I'm bortle 6) although there was not much moon when these were taken.

I've (sort of) forgotten about the price now!

D

I just came back in for another look at it, and the details - like waves - is quite phenomenal.

[gorann]

That is a very very very good Ha image of the California Damian! Amazing detail and phenomenal as Adam says. Clearly CCDs are not dead yet, at least not yours!

Cheers, mGöran

[TakMan]

Thank you both - very kind comments.

Yes, CCD ‘clearly not dead’ (!), just a bit slower than you CMOS imagers - especially when coupled to a Epsilon or RASA !

I’d like to get to 30subs, as I think that’ll be a good compromise between strengthening the details and noise reduction.

Those eagle eyed will see some faint vertical lines in the lower right - my dithering wasn’t properly set, so the remnants of a hot column still remain… we live and learn, hey!?

Thanks again - clear skies and festive greetings to all….

Damian

Oh, I should have said in the original post, processed in Photoshop