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View Full Version here: : M42, NGC253, NGC1365 from last night.


mill
03-10-2011, 01:17 PM
Pic one a ongoing not finished M42 with dust motes etc :P

Pic two is NGC253 (yes another one :) ). cropped

Pic three i took while waiting for M42 to come up , NGC1365 also cropped.

jjjnettie
03-10-2011, 01:19 PM
An excellent nights work Martin!!

Lester
03-10-2011, 01:23 PM
Nice set of images there Martin. All the best.

mill
03-10-2011, 01:32 PM
Thank you jj and Lester much appreciated :)

TrevorW
03-10-2011, 05:44 PM
Nice effort Marty, cloudy again here, looks like all coming togethor

Ross G
03-10-2011, 08:45 PM
Great shots Martin.

I love the derail in the galaxies.

Ross.

LucasB
03-10-2011, 09:49 PM
Great shooting! Love the NGC 253 , It has nice detail.:thumbsup:
Lucas

RobF
03-10-2011, 11:09 PM
That M42 is coming together wonderfully so far to my eye.
MORE he says!!

mill
04-10-2011, 03:58 AM
Thank you Trevor, Ross, Lucas and Rob, much appreciated.

gregbradley
04-10-2011, 12:52 PM
Very nice. Its good when you have a productive night.

Greg.

TheDecepticon
04-10-2011, 02:30 PM
I agree with Greg, good productivity for one night and a great start on M42.

mill
04-10-2011, 04:23 PM
Thank you Greg :thumbsup:



Thanks :)
M42 needs more exposures.

alan meehan
04-10-2011, 08:34 PM
Nice threesome Mill, especially like ngc253 lots of detail in there ,well done
AL

peter_4059
04-10-2011, 08:38 PM
Wow the M42 is looking good! What gear are you using?

richardo
04-10-2011, 11:20 PM
Nice going Martin!
Love the M42 image... looks good at this size at any rate.. (these ol' eyes only noticed 2 motes ;))
NGC253 and 1365 could do with some more data, but hell, doing all these in one night is a 'very' productive night I'd say!

Rich

madbadgalaxyman
05-10-2011, 12:01 AM
Martin,
I enjoyed seeing an image of NGC 1365 which is not so deep and not so over-processed that it overemphasizes the other portions of this galaxy (relative to what exists in the real universe)

It is nice to see a more realistic rendition, showing how bright the central region of this galaxy really is.

The way the dust lanes spiral inwards near the center (call it a Mini-spiral) is nicely shown.

There is an extremely powerful burst of star formation (blue supergiants, giant HII regions, etc) near the center of NGC 1365, which is highly obscured by dust in optical imagery, but it does cause the large central rise in this galaxy's surface brightness.

This central "starburst" is well shown in near-infrared images such as this one, which drastically reduce levels of dust extinction:

101720

mill
05-10-2011, 11:45 AM
Thank you Allan :thumbsup:
I have more data from other nights so i feel a repro coming up :D




Thank you Peter :)
I am using a QHY9m on a ED80 guided with a QHY5 on a finderscope and all mounted on a G11 with Gemini2 loaded with the latest beta firmware.





Thank you Rich :thumbsup:
I have more data for NGC253 to play with so i have more processing to do.




Thank you Robert, much appreciated.
I think this galaxy needs a bit more exposure to make it a bit more smoother and it is fairly small for the good old ED80 :rofl:

Paul Haese
05-10-2011, 11:51 AM
Certainly a busy night. Lots of detail in all the images.

madbadgalaxyman
05-10-2011, 12:47 PM
Nothing wrong with an image that is not very deep;
a lot of the most unusual stuff that goes on in galaxies happens near to the very center of a galaxy, where its surface brightness is highest.....indeed, there are many unusual central phenomena such as Supergiant bursts of OB star formation, active nuclei, large concentrations of cold molecular gas, etc.
These are the easiest sections of galaxies to image, as there is plenty of signal; but obviously, good-to -very good angular resolution is usually required.....for instance, your image of NGC 1097 (at your website) shows the outer outline of its tight centralmost ring of giant star forming regions; but a bit more resolution is probably required to show the ring properly.

mill
05-10-2011, 02:31 PM
Thank you Paul :)
One question, what do you think about the colors ?
I adjusted my new led monitor to what i think it is supposed to be but it shows pictures different than my old lcd monitor (this one has a contrast ratio of 5000000:1 it says in the specs).



Thank you for the explanation Robert :thumbsup:

Paul Haese
05-10-2011, 03:16 PM
M42 looks ok for colour Martin. It is a little flat looking but the colours look fine.

NGC253 is good for central core colour (golden hues) but the outer blue stars are not shown very well. Just take a bit of a look at the blues in your image.

The same goes for NGC1365. Central is fine but the blue stars seem a little muted. Mind you this is a pretty hard one to get the colours right. I plan on redoing this object myself in the next year or so. Perhaps this year.

Colour balance is a matter of personal choice really. For me I really like vibrant colours where the dynamic range is well displayed. It does not suit everyone but the main person who likes it is me. Getting balance right is pretty hard most of the time. Walking away for an hour and looking again helps a lot with sort out the balance. :)

mill
05-10-2011, 03:28 PM
Thank you for your thoughts Paul :thumbsup:
Now you say this, i know that the brightness of my monitor might be to high and that i have to dim it a bit because here i see a nice and bright M42 with bright reds.

mill
05-10-2011, 05:05 PM
Ok i have adjusted my monitor and done three repo's
Thank you Paul for your suggestions :thumbsup:
I also worked with layers on NGC253.
Comments and tips appreciated.

Paul Haese
05-10-2011, 05:13 PM
Those look better Martin.

iceman
10-10-2011, 05:08 AM
Nice set of images Martin, well done

Hagar
10-10-2011, 08:13 AM
Very nice Martin, A very busy night for you. How did you get a clear night? Its been terrible up this way for a year or so now. Even the clear days have clouded up at night.

mill
10-10-2011, 08:20 AM
Thanks again for the tips Paul :)



Thank you Mike, much appreciated :)



Thank you Doug :thumbsup:
I had a couple of good night's and these i could do in a single night (couldn't sleep anyway because of shoulder pain).