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Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing

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Charlie HeinModerator
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Reged: 11/02/03
Posts: 7935
Loc: 26.06.08N, +80.23.08W
Jul09 DSLR Challenge Subject, Rules and Comments! new
      #3193434 - 07/01/09 05:01 PM

The subject: "Cats Eye" Nebula NGC6543!

The rules:

1. All entries must be captured within the same season as the contest. For example, if the subject was Orion Nebula, than any photo captured during this particular winter (or period that it was visible) would qualify for the contest.

2. Images to be considered for entry to the Challenge must be posted to and visible in the challenge submissions thread. A link to an off-site image without a version that is actually displayed in the Challenge submissions thread will not suffice and is subject to disqualification.

3. Images to be considered for entry to the Challenge must be limited to a maximum of 100k in file size, a maximum of 800 pixels square. Entrants may elect to set this "entry image" up as a "clickable link" to a higher resolution image if they so desire, and entrants may also elect to instead provide a separate link to such an image if they so choose. If the entrant provides a legally sized and working "clickable link" as their "entry image", that "clickable link" will be included in the polling thread so that voters can examine the high resolution image before voting. However, any "entry images" displayed on the CN site that do not meet the file size and pixel dimension requirements stated above will subject the entry to disqualification. Any questions on this rule? Just ask.

4. Please include the equipment used to take the image. Scope/Mount/Camera/Focal reducers/Barlows...whatever. Also include your location.

5.There will be a separate sticky thread for Contest entries . Please do not post comments in the entries thread its just for these wonderful images you all will be submitting.

6. The equipment must be yours. Doesn't matter what it is. 20" RC, ETX70, 2" Tasco or an 8" TMB.

7. You must be the operator. You must setup, align, take the exposures and process them yourself. You can have help mounting that 26" RC if need be. No remote scope images. Unless you own that remote scope and have set it up aligned it and hooked your camera up. Then you can use it. No pay by the hour renta-scope images will be allowed.

8. Most importantly! Have fun. Support one another's efforts. As we all can learn from this and enjoy each others accomplishments.



...thats it.



The rules can/will be tweaked each month as we figure out how this can be made a more enjoyable experience for everyone.

Please remember to use this thread to post your comments and leave the submissions thread clear of everything but your wonderful pictures!

Thanks and Good luck to all!


--------------------
"He's dead, Jim - I'll get his wallet, you get his tricorder." - Leonard "Bones" McCoy

Weston CSC:


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zAmbonii
scholastic sledgehammer


Reged: 01/19/08
Posts: 803
Loc: Ypsilanti, MI
Re: Jul09 DSLR Challenge Subject, Rules and Comments! new [Re: Charlie Hein]
      #3194068 - 07/01/09 10:14 PM

Gonna have to pass on the challenge this month. Looking at starry nights, the target would be about 40x40 pixels with my camera/telescope combo...

--------------------
Check out my Astrophotos on Flickr
C6-N 150mm f/5 Newtonian
CG-5 ASGT mount
Canon 300D self modded + IDAS LPS-P2 FF
Meade 70AZ + Meade DSI for autoguiding


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Charlie HeinModerator
Postmaster
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Reged: 11/02/03
Posts: 7935
Loc: 26.06.08N, +80.23.08W
Re: Jul09 DSLR Challenge Subject, Rules and Comments! new [Re: zAmbonii]
      #3194540 - 07/02/09 07:17 AM

Yes sir - this month bring out your long f/l scopes and leave the focal reducers at home, boys - it's definitely a challenge object. On the other hand, the intermediate challenge in Beginning imaging ran this object last month - here is the winning (albeit only) post. This frame was taken with a ST4000-XCM on a 9.25 - there's plenty enough resolution on that setup to get a nice crop of the subject if you wanted to. It's a completely do-able target!

--------------------
"He's dead, Jim - I'll get his wallet, you get his tricorder." - Leonard "Bones" McCoy

Weston CSC:


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Mike Clemens
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Reged: 11/26/05
Posts: 4201
Loc: Wasilla, Alaska 61N
Re: Jul09 DSLR Challenge Subject, Rules and Comments! new [Re: Charlie Hein]
      #3197556 - 07/03/09 06:49 PM

The outer halo on this object is like 1/3rd the apparent size of the moon as I recall. This is not about competing with the hubble on micro-details! : )

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Charlie HeinModerator
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Reged: 11/02/03
Posts: 7935
Loc: 26.06.08N, +80.23.08W
Re: Jul09 DSLR Challenge Subject, Rules and Comments! [Re: Mike Clemens]
      #3198599 - 07/04/09 12:17 PM

Check out this image of the full extent of NGC6543 from the Nordic Optical Telescope. There's a lot more to be had there than just the 5.8 arcseconds that comprise the inner structure and is what mostly gets photographed.

--------------------
"He's dead, Jim - I'll get his wallet, you get his tricorder." - Leonard "Bones" McCoy

Weston CSC:


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Mike Clemens
Post Laureate


Reged: 11/26/05
Posts: 4201
Loc: Wasilla, Alaska 61N
Re: Jul09 DSLR Challenge Subject, Rules and Comments! new [Re: Charlie Hein]
      #3219551 - 07/15/09 02:44 PM

I'm hoping someone goes for the widefield deep exposure. Blow that central nebula WAY out and get the surrounding shell. I can't do it because the midnight sun is still way too bright. here is my best cats eye from last year: http://www.pbase.com/mclemens1969/image/112565302

--------------------

historius apochromaticus


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Charlie HeinModerator
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Reged: 11/02/03
Posts: 7935
Loc: 26.06.08N, +80.23.08W
Re: Jul09 DSLR Challenge Subject, Rules and Comments! new [Re: Mike Clemens]
      #3244329 - 07/29/09 06:38 AM

I had a look through the entries this morning. I have to say that I am proud to see each one of your entries - you guys definitely deserve kudos for jumping in and attacking this month's challenge! Well done indeed!

--------------------
"He's dead, Jim - I'll get his wallet, you get his tricorder." - Leonard "Bones" McCoy

Weston CSC:


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Charlie HeinModerator
Postmaster
*****

Reged: 11/02/03
Posts: 7935
Loc: 26.06.08N, +80.23.08W
Re: Jul09 DSLR Challenge Subject, Rules and Comments! new [Re: Charlie Hein]
      #3248240 - 07/31/09 06:45 AM

I'll say it again - you guys have outdone yourselves on this one! Excellent!

--------------------
"He's dead, Jim - I'll get his wallet, you get his tricorder." - Leonard "Bones" McCoy

Weston CSC:


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zAmbonii
scholastic sledgehammer


Reged: 01/19/08
Posts: 803
Loc: Ypsilanti, MI
Re: Jul09 DSLR Challenge Subject, Rules and Comments! new [Re: Charlie Hein]
      #3262372 - 08/09/09 02:04 AM

Congrats Igor, Pulled off the two-fer this month!

The DSLR challenge this month was a tough one, but there were definitely some kick-butt images entered.

--------------------
Check out my Astrophotos on Flickr
C6-N 150mm f/5 Newtonian
CG-5 ASGT mount
Canon 300D self modded + IDAS LPS-P2 FF
Meade 70AZ + Meade DSI for autoguiding


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Charlie HeinModerator
Postmaster
*****

Reged: 11/02/03
Posts: 7935
Loc: 26.06.08N, +80.23.08W
Re: Jul09 DSLR Challenge Subject, Rules and Comments! new [Re: zAmbonii]
      #3262780 - 08/09/09 10:32 AM

Often a very tough challenge brings out the best in people - all the images were very good, but the best showed real inventiveness and a stubborn refusal to "leave well enough alone". You all deserve congratulations on this one, but especially Igor as the clear winner!

Charlie

--------------------
"He's dead, Jim - I'll get his wallet, you get his tricorder." - Leonard "Bones" McCoy

Weston CSC:


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Nils_Lars
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Posts: 3255
Loc: Santa Cruz Mountains , CA
Re: Jul09 DSLR Challenge Subject, Rules and Comments! new [Re: Charlie Hein]
      #3262957 - 08/09/09 12:28 PM

Most excellent shot Igor , congrats on the well deserved win (both of them)

--------------------
Erik

Orion Atlas Self Hypertuned (EQMOD)
Orion ED 80
Williams Optics VII reducer
Celestron 8" SCT
Orion Starshoot Autoguider
PHD guide
Canon 400D Hap Griffin Mod w/Baader filter
Astronomik clip-in LP filter and 12nm Ha
Stilleto CVF and Bahtinov mask
Tamron 75-300mm&28-80mm lenses
NexImage webcam

http://www.flickr.com/photos/31986095@N05/


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