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Captured by
Lawrence Parchman

Sculptor Galaxy (NGC 253)

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Posts Made By: Ron Wodaski

November 1, 2002 05:43 AM Forum: CCD Imaging and Processing/Solar System

Saturn-big $ scope,small $ webcam, & poor focus

Posted By Ron Wodaski
Nothing beats seeing when it comes to planetary imaging. It's still better than what I can get from my location.

Ron Wodaski
author of "The New CCD Astronomy"
http://www.newastro.com

November 2, 2002 02:48 AM Forum: CCD Imaging and Processing/Solar System

SBIG 2000, test two.... Solar.

Posted By Ron Wodaski
Excellent image.

Ron W

November 3, 2002 06:49 PM Forum: CCD Imaging and Processing/Solar System

something from nothing...

Posted By Ron Wodaski
THe guiding does look really outstanding on this image. It's very deep, showing lots of dim details. Very good work!

Ron Wodaski
author of "The New CCD Astronomy"
http://www.newastro.com

November 3, 2002 06:57 PM Forum: CCD Imaging and Processing/Solar System

IC 1805 and 1848 with D60

Posted By Ron Wodaski
There's actually a lot more here even than what you've been able to pull out so far. I removed a little green (from light pollution?), and boosted the overall histogram a bit, and removed the halos using the Adjust Hue/Saturation tool. [Click on the Blue channel only, then use the eye-dropper tool in the Adjust Hue/Saturation tool to pick up only the desired shades of blue and magenta, the desaturate.]

Ron Wodaski
author of "The New CCD Astronomy"
http://www.newastro.com

November 3, 2002 07:01 PM Forum: CCD Imaging and Processing/Solar System

ngc 6946

Posted By Ron Wodaski
Nice work. Looks like the seeing was just a bit too much for this combination. The sharpening helps take this pretty well; you've taken the sharpening about as far as you can. You have a few stars with dark halos; I have a few suggestions for an alternative method that helps deal with this.

Method 1: If you are using deconvolution for your sharpening, do it a little less aggressively. Then open the image in Photoshop, and select the bright portions of the object but not the stars, using the Color range tool. If necessary, use Select | Modify | Contract with a value of 2-3 to pull the selection away from the stars (then feature 1-2 pixels) before you sharpen.

Method 2: Do two (or more) different versions of deconvolution, and save them with different filenames. Use varying amounts of aggressiveness. THen use layers in Photoshop to put the best of each image together into a single image.

Ron Wodaski
author of "The New CCD Astronomy"
http://www.newastro.com

November 5, 2002 08:45 PM Forum: CCD Imaging and Processing/Solar System

GANYMEDE

Posted By Ron Wodaski
Boy, yard to see if it's real deatils or now. I loaded the image into Photoshop and boosted the contrast, and all I can say for sure is that the middle is darker than the top and bottom. I don't see any steady prograssion that would indicate rotation, and I don't know the rotational period in any case. But very interesting that you can record details. i've seen Jupiter's moons as disks visually a few times, but have never got even close to capturing that photographically.

Your Jupiter animation is just super.

Ron Wodaski
author of "The New CCD Astronomy"
http://www.newastro.com

November 5, 2002 08:46 PM Forum: CCD Imaging and Processing/Solar System

m82 reprocessed with layers

Posted By Ron Wodaski
Excellent! Really shows the details. THe outward flow of hydrogen gas is also clear in this image.

Ron Wodaski
author of "The New CCD Astronomy"
http://www.newastro.com

November 7, 2002 06:51 AM Forum: CCD Imaging and Processing/Solar System

Saturn with 7" MEade MAk & ToucamPro web cam

Posted By Ron Wodaski
Nice resolution.

Your color balance is off, as you noted. It's a simple problem to fix: the white point on the red channel is set too low. If you reprocess the image, and the problem occured as a result of your processing, watch out for this. If the color balance was off in the downloaded data, you can fix it by lowering the white point in the blue and green channels to match the red. The attached image shows the result of this latter approach. It makes the image a little too bright, which is what makes me think it might have been something in your processing that upset the balance.

I suggest you take a look at the histograms for the three color channels. You will immedately see why I discovered the problem is in the white point settings. The red channel histogram is much stronger on the right, while the blue and green histograms are weak on the right.

Ron Wodaski
author of "The New CCD Astronomy"
http://www.newastro.com

November 11, 2002 12:48 AM Forum: CCD Imaging and Processing/Solar System

M42 - D60

Posted By Ron Wodaski
Wow.

Ron W

November 12, 2002 05:19 AM Forum: CCD Imaging and Processing/Solar System

M42 D60, Unguided 3min

Posted By Ron Wodaski
Not only that, but the depth of field on NGC 1977 is just awesome. I'm stunned at how well this camera works for deep sky.

Ron Wodaski
author of "The New CCD Astronomy"
http://www.newastro.com

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