NGC2070 in 3nm Narrow Band Hubble Palette

[avandonk]

PixInsight used for all calibration, alignment and integration. Even with 3nm Narrow band filters I still get gradients due to light pollution. I used Dynamic Background Extraction to get rid of it.

I used drizzle integration to get full resolution back. Note that a binnedX2 image exposure for 32 min is equivalent to a full resolution image exposure of 128 min with a quarter of the read noise.

Data : SII 20f, NII 15f, OIII 18f. 32 min binned X2.

SII to red, NII to green, OIII to blue.

Used PS to tweak to the Hubble Palette using this recipe.

http://bf-astro.com/hubblep.htm


Full size image here 10MB

https://www.flickr.com/photos/34386396@N08/44112941520/in/dateposted/


Bert

[Andy01]

Lovely wide vista there Bert, well done on a great image! :thumbsup:

[cometcatcher]

Incredible image Bert! So many twists and knots in there.

[Geoff45]

Amazing field there Bert. Full of interesting objects that are each worthy of their own close-up view.

[Bart]

I find this area as a whole switches on my OCD and it looks too messy, I want to put things away and tidy up! :help:


Having said that it is a nice wide field shot for sure, and there is plenty to see! :thumbsup:

[Weltevreden SA]

Intriguing and provocative image, Bart. Stopped me in my tracks. Was there a particular reason why you chose that filter set? I'm scratching my head what astrophysics is coming out here. Never saw those concentric dust rings at your 10:00 halfway to the upper l edge. 2070 is too young for those to be SNRs. They're also too far out to be ejecta. Also those unresolved yellowish blobs 4:30 below r just exterior to the 2070 gas ejection bubble. Are those pixel saturation or real gas overdensities? Thanks, Dana in S Africa

[gaseous]

Incredible image! well done indeed.

[Lee]

Nice image.... it looks like a sky full of anti-aircraft artillery blasts....

[avandonk]

Thanks for the nice comments all.

It has always been my aim to image the very dim stuff. This means maximising signal to noise.

Narrow band for long exposures can show detail that just is not visible in conventional RGB images. That being said I see my wide field images as a large map of destinations to go to for people with longer focal lengths and to be assured of a result with long and painful many exposures.

I suppose we all do this imaging because we want to see what has never seen before.

It keeps me relatively sane.

This is a very deep image. The resolution is not that great compared to telescopes of longer focal length.

Never mind the quality feel the width.

It is my humble opinion that it shows areas of gas emissions that have never been seen before in such clarity.

This quest will never end. Bert