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M81 and M82

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#1 bluedandelion

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Posted 02 February 2013 - 10:05 PM

M81 and M82 imaged with a modified Canon 350D and an SV856 at f/7 from Table Mountain, WA. No filters were used. Exposure was 5 mins x 24 for a total of two hours at ISO 800. This is the full scale center crop. Processed with Pixinsight.

Posted Image

Full scale image on Flickr.

Thanks for looking.

Ajay

#2 zerro1

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Posted 02 February 2013 - 10:59 PM

Sweet Image Ajay!

#3 bluedandelion

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Posted 02 February 2013 - 11:32 PM

Thank you, Robert.

Ajay

#4 carlstronomy

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Posted 02 February 2013 - 11:37 PM

Nice image Ajay, very well processed and nice and clear. I personally like the natural looks not the oversaturated, which is what you have here, very nice for 2 hours of data.

Clear Skies (comma in the right spot I think but is still reads wrong)

Carl

#5 bluedandelion

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Posted 02 February 2013 - 11:58 PM

Thank you Carl. Appreciate the compliment.

On saturation: Agree that it is enhanced but I beg to differ that it is overly so. I tried to bring out the H-alpha regions a bit. If you look at M81 it is not uncommon to see those colors. I was surprised that M82 came out the way it did, but I like it. To each his own.

Ajay

#6 carlstronomy

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Posted 03 February 2013 - 12:02 AM

Ajay sorry ,I read my post back I was wanting to say yours was not oversaturated not the other way around :foreheadslap: sorry missed a comma,,, ....

#7 pfile

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Posted 03 February 2013 - 12:09 AM

really nice - and just 2 hours? wow.

#8 fco_star

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Posted 03 February 2013 - 12:31 AM

beautiful picture Ajay

#9 bluedandelion

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Posted 03 February 2013 - 12:37 AM

Ajay sorry ,I read my post back I was wanting to say yours was not oversaturated not the other way around :foreheadslap: sorry missed a comma,,, ....


No problems Carl. Its all good. In the field of pretty picture making some subjectivity is bound to exist. So I did not take it poorly. Thanks for the clarification.

Ajay

#10 bluedandelion

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Posted 03 February 2013 - 12:42 AM

really nice - and just 2 hours? wow.


Skies were nice and dark. Here's some info about the site: http://www.tmspa.com.../site_info.html
Last summer a wildfire swept through here as large parts of central WA burned.

Back on the subject, its the dark skies combined with Pixinsight magic (HDR multiscale) which you know all about:)

Ajay

#11 bluedandelion

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Posted 03 February 2013 - 12:43 AM

Thank you Francisco.

Ajay

#12 srosenfraz

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Posted 03 February 2013 - 01:51 AM

Great job on this image, Ajay. Your colors for both galaxies are superb.

#13 davesaunders

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Posted 03 February 2013 - 05:03 AM

WOW!! :goodjob:

Dave.

#14 Nils_Lars

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Posted 03 February 2013 - 05:52 PM

Excellent work here Ajay.

#15 avarakin

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Posted 04 February 2013 - 12:02 AM

Excellent image with lots of details!

Alex

#16 bluedandelion

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Posted 04 February 2013 - 01:22 AM

Scott, Dave, Erik and Alex,

Thanks.

Ajay

#17 microstar

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Posted 04 February 2013 - 01:58 AM

Very nice detail for such a short integration time.
...Keith

#18 mmalik

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Posted 04 February 2013 - 05:58 AM

Like it. Thx

#19 bluedandelion

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Posted 04 February 2013 - 09:59 PM

Thank you Keith and Mike.

Many people (here and on Flickr) have commented on the amount of detail I was able to get with 2 hrs with a canon 350D at 800 ISO.

To tell the truth my first effort was not so great.

This image was acquired in my second season in 2010. However I did collect flats, flat darks to correct the flats and darks. I don't use bias frames because I do traditional dark subtraction and dark frames already contain the bias signal. Proper calibration helped stretch the data more. I also had nice dark skies and the seeing was better than average for most part.

Ajay

#20 bouffetout

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Posted 08 February 2013 - 10:13 PM

Congratulations Ajay ,That's a very fine photo !

#21 bluedandelion

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Posted 09 February 2013 - 11:28 AM

Thank you Maxx. APpreciate the comment.

Ajay

#22 astroRoy

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Posted 09 February 2013 - 11:32 AM

Wow, I don't remember ever seeing a better capture of these two. Nice work.

Roy

#23 bluedandelion

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Posted 10 February 2013 - 01:55 AM

Oh, my! Thank you Roy, but you ought to see this one by Terry Hancock:
http://www.flickr.co...tacts/lightbox/

Ajay


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