#1  
Old 23-07-2007, 07:40 AM
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Dietmar
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Ngc 6207

hi DSI friends,

My attention was drawn on this nice galaxy when I was on vacation in Italy some years ago. I had a 14" dobsonian with me and was pretty much surprised that this galaxy happened to be "bright" and could easily be spotted in the eyepiece.

when I imaged M13 with my 9" TMB Apo at f/7 using a TeleVue 0,8 redcuer some weeks ago I framed the image so that NGC 6207 would also find some place on it.
http://www.stargazer-observatory.com/M13-9.html

I did never expect to have some details in luminosity and color there !!!

so I wanted to image her solely. it is most decidedly worth the effort to image this small galaxy. I think it is only the fact that 6207 is so close to M13, the brightest and largest glob.cluster for us "northern hemispherians", that she is not so frequently captured.

here is my result.

date: 13th of july 07
location: ~48° north; 750 sealevel
scope: 9" TMB Apo f/9 and SXV H16 monochrom CCD for luminance (10 min subs, 2.5 hours)
9" TMB Apo f/6.8 (astrophysice reducer) and SXV M25C for color data (12 min subs, 2.8 hours)
seeing and transp.: 6/8

you might wonder, why I used a color cam for colrs, when having a monochromatic CCD for lum...?

well - the reasons:

- I wanted to try combining 2 different systems in one image
- I could not count on another clear night next day, after having taken luminance.
so I had to make sure to collect all essential data for this object in one decent night.
the weather is pretty unstable at my place,...

I used AstroARt4 for image acquisition, autoguiding and a defect map for m25c (one single dark for making a defect)
maxim dl was used for the luminance data and I created a master dark out of 3 dark frames.
CCD sharp and regiszax wavelets for sharpening the luminance and the pseudoluminance drawn out of the M25C data.
PS CS2 for postprocessing; Pix Insight LE for backgroundsmoothening.

here we are witha small preview:
http://www.stargazer-observatory.com...7rgb-small.jpg

full size frame and enlarged crop here please:
http://www.stargazer-observatory.com/6207-full.htm

http://www.stargazer-observatory.com/6207.html

hope You like it - thanks for looking!
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  #2  
Old 23-07-2007, 08:09 AM
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iceman (Mike)
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Amazing image, Deetz! A beautiful object.

There is also a lot of smaller and fainter galaxies scattered amongst the backdrop, more easily seen in the cropped fullsize version.
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Old 23-07-2007, 08:29 AM
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marc4darkskies (Marcus)
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Quote:
Originally Posted by Dietmar View Post
when I imaged M13 with my 9" TMB Apo at f/7 using a TeleVue 0,8 redcuer some weeks ago I framed the image so that NGC 6207 would also find some place on it.
http://www.stargazer-observatory.com/M13-9.html
That's a fantastic image!!! Lots of dim galaxies in the background to discover too when looking at the hi-res version. Just beautiful!!

Quote:
Originally Posted by Dietmar View Post
so I wanted to image her solely. it is most decidedly worth the effort to image this small galaxy.
http://www.stargazer-observatory.com/6207-full.htm

Very impressive for a 3 arcmin object. Excellent detail. An outstanding job all around Dietmar - well done! What's the image scale on this by the way?

Cheers, Marcus
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Old 23-07-2007, 08:37 AM
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Dietmar
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...thanx Mike `n Marc.
much appreciated!

Marc - we`re talking about 2048x2048 pixels - 7.4 microns - on a 15.15x15.15 mm large chip. that is
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Old 23-07-2007, 08:42 AM
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I love the shot of M13 and the fainter galaxies all in the same image...
Magic stuff!!! M13 resolved to the core and pinpoint sharp!!
cheers
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Old 23-07-2007, 08:45 AM
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RB (Andrew)
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Wow, wonderful work Dietz.
Stunning indeed !!

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Old 23-07-2007, 08:57 AM
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Dietmar
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...thanx Gary and Andrew!
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Old 23-07-2007, 11:21 AM
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Dietz...........absolutely stunning images

Thanks for sharing them with us
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Old 23-07-2007, 11:54 AM
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Hi Dietz, what fantastic images you certainly have brought out the detail in the galaxy and the smaller fainter one have come up nicely as well.

I'm looking forward to seeing more of your work and your equipment sounds very nice as well.

Cheers
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Old 23-07-2007, 12:22 PM
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marc4darkskies (Marcus)
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Quote:
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What's the image scale on this by the way?


Quote:
Originally Posted by Dietmar View Post
Marc - we`re talking about 2048x2048 pixels - 7.4 microns - on a 15.15x15.15 mm large chip. that is


I make that around 1 arcsec/pixel at F6.8 - maybe achieving around 2.5 or so (?) Fine work!

Cheers, Marcus
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Old 23-07-2007, 06:32 PM
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Dietmar
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...thanx Tamtarn and Ric.
Yes Marcus - these are the numbers.
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Old 24-07-2007, 12:12 AM
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richardo (Rich)
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Hey hey hey Diets, nice to see you on this group

I saw your image of Ngc 6207 of the SX group.... and also on Anacortes..
You get around....

Both very darn nice images.
I like the way you've shown Ngc6207 and its relationship with M13 with the Televue, then hunted it down with the super large 9" TMB weapon you have.
Damn you have some gear

Glad your move to the new house went well and your up and running again.

Thanks for sharing and look forward to more of your great images on this group in the future.

All the best
Rich
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Old 24-07-2007, 01:34 AM
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Dietmar
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thanks Rich for this nice answer!
hey - as it looks - I find all my pals here again.
and certainly I hope to find some new here in IIS.
cool!
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Old 24-07-2007, 07:46 AM
jase (Jason)
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Lovely work Dietz. NGC6207 shows some magnificent structure. Your data is smooth. Good processing. Well done!
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Old 26-07-2007, 08:16 PM
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Dietmar
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...thanx Jase!
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Old 31-07-2007, 05:52 PM
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Thats amazing! Well done, Dietz!
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Old 31-07-2007, 06:27 PM
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holy smokes thats a **** hot image dietmar ..well done
them tmb,s do a pretty good job..damn thats a nice shot
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Old 31-07-2007, 07:42 PM
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Dietmar
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...thnx Nick and Skelty.
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Old 12-08-2007, 08:03 PM
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Dietmar
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reprocessed galaxy

hi again,

13° Celsius (55° Farenheit), fog, rain, clouds in mid august...we are supposed to sewat at 35° celsius in summer,...so it is time to reprocess old data.
and I did this with my ngc 6207 data.

the final result can be found here:
I payed much more attention to the starcolor and detail in the core of the galaxy.

http://www.stargazer-observatory.com/6207.html

thanks for looking,
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Old 13-08-2007, 12:06 AM
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Very nice indeed Dietz, you certainly brought out the best in that image.

Very enjoyable
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