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Old 07-12-2016, 08:52 PM
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Andy01 (Andy)
My God it's full of stars

Andy01 is offline
 
Join Date: Mar 2012
Location: Melbourne
Posts: 3,279
The Jewel of the Nile - M42 in NB

My take on this perennial favourite in glorious Narrowband.

There are some hints of NGC 1999 at 4 o'clock (anyone remember Space 1999 on TV?) and some cool shapes in the outer gaseous regions, not often seen - especially the "finger" at 7 o'clock.

This is 7 different filters, (there's Ha, O3, S2 & a touch of N2, R, G & B) and 17 datasets combined.
Man that was a lot of data to process and collate, something like 25 hrs all up in 60sec, 300 sec, 1200 sec and 1800 sec exposures.

I've added RGB stars in as well, might as well throw the kitchen sink at it!

Interesting how "the Running Man" doesn't feature in NB.

He showed up ok in the Blue but probably needs more broadband integration than these 18x60 sec subs allow.

The outer Ha regions were a killer, even after 14 hrs exposure there's still a touch of noise there, but it's time to move this one along.

FYI - I've mapped Ha to blue, O3 to orange/red & S2 (enhanced with a touch of N2) to yellow/green - hopefully this unconventional colour palette allows sufficiently clear separation of these NB Emission lines.

High res HERE

Anyway, as always, thanks for looking, hope you like it - comments welcome
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