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Martin Pugh
23-05-2012, 08:34 PM
Hello everyone - next off the processing line is M13.

Got a bit to say about this, so bear with me.

When I drilled down to the core, this single green star stood out like a sore thumb. The colour data is properly calibrated, and this star is perfectly formed, but why it is green is beyond me (I dont think this is Barnard 29)

So:

Two versions of the image linked below:
The first is how I processed the image before I spotted this green alien.
http://www.martinpughastrophotography.id.a u/images/M13LRGBv2.jpg

Revealing this star in a fully stretched/processed image is very difficult, so I reprocessed the core and blended it into this second version.

http://www.martinpughastrophotography.id.a u/images/M13LRGBv1.jpg

To see the green star in all its glory, click here (http://www.martinpughastrophotography.id.a u/images/Heart-of-M13.jpg):

Also in the image at lower right is NGC 6207 - the owner of SN 2004A, but no longer visible in this image.

cheers
Martin

Peter Ward
23-05-2012, 08:46 PM
Just wonderful stuff Martin. Sublime. :thumbsup::thumbsup::thumbsup:

Peter.M
23-05-2012, 09:00 PM
Is that a teensy planetary i spy to the left of the globular? Awesome!

gregbradley
23-05-2012, 09:31 PM
Wonderful image Martin.

Superbly processed.

Greg.

naskies
23-05-2012, 09:49 PM
Wow - another amazing image. Your remote observatory sounds intruiging... do you have a link to some details about it?

Martin Pugh
23-05-2012, 09:59 PM
Thanks everyone.

Yes Dave, there is a link to Heaven's Mirror observatory here:

http://www.martinpughastrophotography.id.a u/Heavens_Mirror.htm

thanks for checking it out.

Martin

naskies
23-05-2012, 10:09 PM
Thanks for the link. Wow, what an amazing set up! :eyepop:

BarbLahey
24-05-2012, 01:35 AM
Beautiful image!:thumbsup:

dvj
24-05-2012, 02:38 AM
Ooooh my eyes, my eyes!

Stevec35
24-05-2012, 08:20 AM
Incredible image Martin. I was going to post a M13 image myself but I don't think I'll bother now.

Cheers

Steve

marco
24-05-2012, 11:53 AM
Impressive image and set up Martin. With that seeing and your skills I am expecting a costant flow of stunning images now from the 17" :thumbsup:

Marco

multiweb
24-05-2012, 12:38 PM
Another corker Martin. Beautiful sharp field. It's quite amazing to see so many background galaxies. It adds real depth to the whole vista. :thumbsup:

Martin Pugh
24-05-2012, 01:28 PM
Thanks very much folks.

Marc, what you say is what I enjoyed most about this image - look closely, you can see background galaxies between the stars! Amazing!

thanks for looking
Martin

Leonardo70
24-05-2012, 05:57 PM
Congratulation Martin, another amazing result... and a dream setup/location. I'll wait for the next ones.

All the best,
Leo

John Hothersall
24-05-2012, 06:17 PM
Thats amazing resolution, I had a look at my M13 when I was in the UK and there is a green star too in my image I never noticed and some cyan looking stars as well.

John.

skysat
14-06-2012, 03:59 PM
I decided to do some detective work and see if I couldn't figure out how to find Barnard 29 and the green star. The green star appears to be star 202 on Barnard's M13 list. It's variable. I wonder how many days it was between your first and last exposure? I downloaded the APOD hires BMP and looked at it in MS Paint. Star 29 (the blue one) is at x=1068, y=1117. You can see all of this for yourself by looking at Publications of the Yerkes Obs., Vol. 6. Look here:

http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1931PYerO... 6....1B&db_key=AST&page_ind=69&plate_select=NO&data_type=GIF&type=SCREEN_THMB&classic=YES

The section on M13 starts on p. 62. M13 star positions start on p. 67.
Randy

iceman
14-06-2012, 04:51 PM
Congrats on APOD today martin! Wow you're on a roll!

atalas
14-06-2012, 06:00 PM
Excellent work as always,and congrats on today's APOD Martin.

Martin Pugh
14-06-2012, 06:38 PM
Thanks everyone. Yes, 2 APODs in one month. Pretty happy about that.

Randy - excellent detective work, and many thanks for that.

Martin

TheDecepticon
14-06-2012, 08:04 PM
Truly great stuff, Martin!:thumbsup:

alpal
14-06-2012, 09:22 PM
What a great photo & an APOD as well!

Keep up the top work.

stevous67
15-06-2012, 06:21 AM
Beautiful work Martin, congratulations also on the APOD's!

Steve

Martin Pugh
15-06-2012, 07:47 PM
Thanks again everyone.

cheers
Martin

Fabiomax
16-06-2012, 07:21 PM
I'm a little late for the compliments ... breathtaking images...
Cheers,
Fabiomax