M42 Core in HaRGB

Bassnut (Fred) · #1 11-02-2009, 06:59 PM

Hi Guys

Thought Id attempt this rare object in proper RGB

. Well, HaRGB, that gets more detail.

The core looks washed out, but thats the way it is, all the samples I could find were the same.

Although its very bright, the extended neb is quite dim.

M42 Orion Nebula Core in HaRGB
HaRGB Ha 3nm 3hrs bin1; RGB 45mins each bin2
Ha 10min and 1min subs, RGB 5min and 30sec subs
Taken on a Meade 12" LX200R OTA, G11, ST10XME, at f6.7

AlexN · #2 11-02-2009, 07:02 PM

Looks very nice Fred.. A lot more viewable than the SHO shot!

if you take a look at the hubble image of M42, the core looks much the same as that image of yours... Thats gotta mean something.

Alex.

Omaroo (Chris Malikoff) · #3 11-02-2009, 08:25 PM

Quote:

Originally Posted by AlexN

Looks very nice Fred.. A lot more viewable than the SHO shot!

if you take a look at the hubble image of M42, the core looks much the same as that image of yours... Thats gotta mean something.

Alex.

Plagiarism!!!!!!

Looks great Fred. That's a phenomenally-tight FOV. You don't see this perspective often, so I can only go on HST photography too, and there is definitely a comparison to be made. Nice!

AlexN · #4 11-02-2009, 08:41 PM

Chris, agreed, the view sure is tight in this image... about 10 arc min tighter at each edge than my attempt

Bassnut (Fred) · #5 11-02-2009, 09:27 PM

Gee, thanks Alex, Chris, im flattered on references to HST

.

Guiding wasnt so tight (= far too much time in PS).

Actually, apart from star bloom, the 5min 3nm Ha subs were fine by themselves for both the core and neb, a supprise on hearing all the grief about the need for multiple exposure times for M42. Goes to show the value of 16bit Astrocams and narrow Ha

.

AlexN · #6 11-02-2009, 09:31 PM

I found 8min Ha subs with my QHY8 only just burned the core... but the QHY8 is a lot less sensitive than an ST10, and 13nm is a far cry from 3nm

I had to touch up my stars in my close up too fred

Turned out ok in both our cases..

gregbradley · #7 12-02-2009, 04:18 PM

Holy Cow that's awesome Fred.

Greg.

peeb61 (Paul) · #8 12-02-2009, 04:49 PM

Fred,
Just beautiful mate!

Paul

Bassnut (Fred) · #9 12-02-2009, 04:59 PM

Thanks Alex, Greg and Paul

Alex, 8 mins is a long exposure ?? (despite sensitivity etc), If that burnt the core, did you take shorter exposures too ?.

I see a lot of burnt cores, I dont get it, short exposures are easier than long ones, I dont know why anyone who can do layer masks puts up with a burnt core, just keep doing shorter and shorter exposures until it doesnt (just for the core)

.

I must say, for M42, wide field is more attractive generally

AlexN · #10 12-02-2009, 05:03 PM

Fred - Wash your mouth out with dettol after that comment! want a wider field? do a mosaic!

And yes, I took shorter subs to bring the core back.. a few @ 1 minute and a few @ 30sec... this tamed it down nicely...

spearo (Frank) · #11 12-02-2009, 07:13 PM

well done
great detail
frank

marc4darkskies (Marcus) · #12 13-02-2009, 08:46 AM

Mmmmmm ... RGB!! I've just had the bandages taken off my eyes from the temporary blindness caused by your last, lets say, non-RGB version.

But this one is sweet Fred - a very cool, detailed and easy-on-the-eyes image!

Cheers, Marcus

Hagar (Doug) · #13 13-02-2009, 09:05 AM

Hi fred, This one is a bit more to my taste than your last although like you, I think M42 is a much better target for a wider field. Still the clarity of the shot makes it a real winner. Thanks for posting this comparison image.

RB (Andrew) · #14 13-02-2009, 12:02 PM

Very nice indeed Fred, lovely and smooth with heaps of detail.

Garyh · #15 14-02-2009, 08:27 AM

It`s M42 alright, but boy it`s a very nice one! the detail and contrast around the core is stunning!

Deeno · #16 14-02-2009, 08:35 AM

Spectacular Fred,

M42 eh, running out of targets are we?

Bassnut (Fred) · #17 14-02-2009, 09:43 AM

Alex, yes yes of course, mozaic, thats what I ment

Thanks Frank, glad you liked it

Cheers Marcus, that NB is starting to look not so clever now. Easy on the eyes, well, I had too, restor some credbility

Doug, thanks, yes, the core by its self is not so attractive, iether its pushed and too agressive, or a little washed out.

Thanks Gary,yep its M42, the only neb you can centre on in the finder scope

.

Cheers Deeno, yes I ran out, couldnt avoid it anymore

leon · #18 14-02-2009, 10:45 AM

Wow, that is deep, nice going Fred, beautiful work.

Leon

Ric · #19 14-02-2009, 09:50 PM

Wow what a fantastic image Fred. There is so much intricate detail hidden away in the core.

Jen · #20 15-02-2009, 01:07 AM

wow Fred you take some beautiful shots keep up the great work cheers