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Douglas Rollain

Lion Nebula SH2-132 - RC71

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Posts Made By: Alan Friedman

August 14, 2003 06:49 PM Forum: CCD Imaging and Processing/Solar System

Mars Aug.14_03

Posted By Alan Friedman
Absolutely beautiful processing. It seems as though you could feel the bump of Elysium Mons. Thanks for sharing this image.

Alan Friedman

September 5, 2003 04:44 PM Forum: CCD Imaging and Processing/Solar System

Telescope for Planetary Imaging

Posted By Alan Friedman
Hi Jim -

For imaging I think you will always produce better results with the larger scope. You will get better image scale with more signal and less reliance on gain. For visual observations, the responses will be across the board. On many nights with average to fair seeing the smaller scope will provide a more pleasing image and perhaps as much detail as the larger. The 5" refractor will always show more than the 4".

my two cents,
Alan Friedman

September 9, 2003 03:43 PM Forum: CCD Imaging and Processing/Solar System

mars 09/02

Posted By Alan Friedman
Very nice image Joe. That big blue northern ice hood was very prominent from that position. We saw it visually a few days earlier at the Black Forest Star Party in PA.

clear skies
Alan Friedman

September 11, 2003 01:54 PM Forum: CCD Imaging and Processing/Solar System

CCD Astro-Photo's & Macintosh

Posted By Alan Friedman
Hi Craig -

My older SBIG ST-8 will run on a Mac - but requires a SCSI interface, which has not been included in Macs for the last several years. I have to borrow an old G3 laptop back from my kids to run CCDOPS for Mac. The best bet would be to bite the bullet and get a Windows laptop - then you can use any camera and image acquisition/processing software.

If you are looking to use a digital camera with your telescope, there are many more choices.

Alan Friedman

September 18, 2003 04:35 PM Forum: CCD Imaging and Processing/Solar System

Mars Sep.17th 2003, Great seeing!

Posted By Alan Friedman
Super. Seeing the movement of the atmospheric clouds from the two images is wonderful. In many images they look like processing artifacts - in these images they look like you are there!

Alan Friedman

September 18, 2003 05:35 PM Forum: CCD Imaging and Processing/Solar System

Blue Fringe????

Posted By Alan Friedman
The north polar hood has become prominent in the last few weeks. Yu Gu's spectacular shot from 9/17 shows it clearly. It extends to different latitudes depending on the CM facing you - currently its maximum southern extension is over the Acidalia Planitia - this image was taken 8/31.

Alan Friedman

September 20, 2003 06:08 PM Forum: CCD Imaging and Processing/Solar System

Mars

Posted By Alan Friedman
Jake -

Very nice image. Excellent detail and good fortune in capturing that brief dust eruption. These images are quick to capture but good processing takes time.

clear skies!
Alan Friedman

September 23, 2003 04:11 PM Forum: Zeiss

mounting the APQ 130

Posted By Alan Friedman
Sorry - that should read attach, not attack. One does not attack an APQ 130!

Alan

September 26, 2003 07:16 PM Forum: CCD Imaging and Processing/Solar System

Moon mosaic Sep 19

Posted By Alan Friedman
Johannes -

Just breathtaking!

I was experimenting with using webcam streams for a high resolution image of the full moon Sept.10 at focal length 3600mm. The seeing was not good, and after doing about half the moon with 50 streams, I packed it in and went to bad. Decided I would not live long enough to finish the processing.

Its super to see yours turn out so well.

Alan Friedman

October 2, 2003 01:55 PM Forum: Astro-Physics

Traveler vs Tak FSQ 106

Posted By Alan Friedman
Hi Tom -

I wish I had more time that night to compare the views through these two scopes. (This night was a public night at our observatory and we had perhaps 500 people in line for a look at mars.)

I did have a brief look through both scopes and was very impressed with the contrast provided by the Tak 106 on the albedo features of Mars. The Tak was sporting the extender Q when I looked through it - so the comparison was between the Traveler at f5.8 and the Tak at f8. I thought the focuser on the Tak somewhat stiff for visual use. Both scopes offer superb performance for their aperture in a very compact package.

clear skies!
Alan Friedman

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