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Posts Made By: Ron Wodaski

May 2, 2003 01:47 PM Forum: CCD Imaging and Processing/Solar System

Repost: NGC3718 with some color

Posted By Ron Wodaski

I had guiding problems that prevented me from getting as much color data as I would have liked, but even a little color works out reasonably well, so I thought I'd post the result. Color is 3x3 bin, ST-10XME, C14. Three sets of 6:10:12 minutes RGB - and it was barely enough. Image size reduced to hide some of the graininess in the color.

Ron Wodaski

May 4, 2003 03:42 AM Forum: CCD Imaging and Processing/Solar System

NGC3642

Posted By Ron Wodaski

This is a very faint galaxy in Ursa Major - right inside the bowl, in fact. The core is faint but not terribly so, and the arms are very faint - single 20 minute exposures barely bring them out. This is the result of three hours of luminance exposure, nine at 20 minutes each. A mild deconvolution in CCDSoft to bring out details - the seeing was a little soft tonight.

ST-10XME, C14, Paramount ME via the internet.

Ron Wodaski
http://www.newastro.com/remote

May 5, 2003 01:35 AM Forum: CCD Imaging and Processing/Solar System

NGC4490/4485 (Arp peculiar galaxies)

Posted By Ron Wodaski

This is a stack of five 20-minute luminance images of a fascinating pair of galaxies. I saw an image of these two somewhere recently, and I decided to take a shot at them tonight. I can't wait to get color for this one!

ST-10XME, C14, Paramount ME.

For a slightly different interpretation, with a brighter core, please see the following link. This alternate version shows more of the very dim outer areas of the larger galaxy, including a thin barely-visible sheet of stars trailing out to the upper right from the lager galaxy:

http://www.newastro.com/remote/images/ngc4490.jpg

Ron Wodaski
http://www.newastro.com/remote

May 6, 2003 01:16 AM Forum: CCD Imaging and Processing/Solar System

NGC 4490 in color

Posted By Ron Wodaski

It was really windy tonight, but managed to collect some color images for last night's NGC 4490 luminance. The color was not as deep as the luminance, so the outer areas of the galaxy are fairly plane. But there are very interesting subtle colors across the face of the larger galaxy, as well as some more obvious HII (star forming) regions glowing in the red.

Three sets of RGB (9:15:18 minutes each set), ST-10XME binned 3x3, C14, Paramount ME.

Ron Wodaski
http://www.newastro.com/remote

May 6, 2003 01:54 PM Forum: CCD Imaging and Processing/Solar System

NGC4490/85 with ST-237

Posted By Ron Wodaski

This image of NGC4490 and 4485 was taken with my guide scope. The guide scope is a Borg 45mm ED (that's right, a 45mm aperture). The result was better than I expected, so I thought I would post it. A stack of eight 10-minute images, with some sharpening to tighten up the stars.

The C14 with ST-10XME was imaging and self-guiding, so I was able to image with the 45ED scope and ST-237 for long exposures. There is a small amount of flexure in this system, but not enough to show up in 10 minutes.

You can see my setup, with the little 45ED Borg at the left of the C14 tube, here:

http://www.newastro.com/remote/images/power_brick.jpg

Ron Wodaski

May 10, 2003 02:34 AM Forum: CCD Imaging and Processing/Solar System

NGC5566 color

Posted By Ron Wodaski

The winds were pretty high tonight (gusting to 20mph), but I got a reasonable image of NGC5566 and the neighborhood tonight. This is 6 20-minute images with the moon still up. I used the Photoshop Minimum filter to bring down bloated star sizes.

C14, ST-10XME, Paramount ME

Ron Wodaski
http://www.newastro.com/remote

May 19, 2003 02:42 AM Forum: CCD Imaging and Processing/Solar System

"The Eyes," a galaxy in Virgo

Posted By Ron Wodaski

This is a luminance-only image of NGC 4438 and 4435. There is some gravitational interaction going on here, with most of the distortion happening in nGC 4438. I have imaged this galaxy before in wide-field views, and I never realized it had such fascinating structure. The distorted dust lane, and streamers of stars, make for a very interesting subject. I will try to get color on this one soon.

A median combine of 6 20-minute exposures, C14 with SBIG ST-10XME on Paramount ME.

Ron Wodaski
http://www.newastro.com/remote

May 22, 2003 03:35 AM Forum: CCD Imaging and Processing/Solar System

"The Eyes" (NGC 4435/38) in color

Posted By Ron Wodaski

I took four sets of 6:10:12 minute RGB exposures tonight to add color to the earlier luminance image. No additional luminance images were taken tonight - there wasn't enough time. As it was, I finished up at about 35 degrees of elevation, at which point the blue extinction due to scattering was quite noticeable.

The result was resized to 80% of the original as the seeing was only so-so, and the small reduction seemed to tighten up the image and make it look better.

ST-10XME, C14, Paramount ME.

Ron Wodaski
http://www.newastro.com/remote

May 22, 2003 03:48 AM Forum: CCD Imaging and Processing/Solar System

Tough target: Seyfert's Sextet of galaxies

Posted By Ron Wodaski

Boy, this is a tiny target even for the C14 with ST-10. The seeing was marginal for this kind of image, but since I went through the trouble to collect an hour's worth of luminance exposure, I thought I would post the result.

C14, ST-10XME, Paramount ME, 20-minute individual exposures. This image was taken with a new bit of software I'm working on: a plug-in that averages multiple guide exposures to smooth out guide corrections. It is especially useful for windy conditions (as for this exposure) and mounts that have random errors.

Ron Wodaski

June 6, 2003 11:44 AM Forum: CCD Imaging and Processing/Solar System

Coccon Nebula LRGB

Posted By Ron Wodaski

I was doing some testing last night on some new software - it was partly cloudy and did not seem like a good night for imaging. But the skies cleared about a half-hour before twilight, so I took a couple of 15-minute exposures of the Cocoon. The seeing was OK but not great. I added color from a low-resolution image I took several years ago with the FCT-150.

Two 15-minute exposures averaged, ST-10XME and C14 on Paramount ME.

Ron Wodaski