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Lion Nebula SH2-132 - RC71

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Posts Made By: Alan Friedman

January 22, 2005 06:12 PM Forum: CCD Imaging and Processing/Solar System

Re: Saturn Opposition 2005.

Posted By Alan Friedman
Damian -

Glorious. Especially nice processing of the disk and its symmetrical cast on the rings at opposition - no artifacts to spoil the beauty of the moment.

thanks for posting it -

Alan

January 23, 2005 10:22 PM Forum: CCD Imaging and Processing/Solar System

Re: Saturn: the calm before the storm!

Posted By Alan Friedman
A great image. You can shovel with a smile!

Alan

January 25, 2005 11:58 PM Forum: CCD Imaging and Processing/Solar System

Re: Saturn Opposition Collaboration

Posted By Alan Friedman
That is superb.

Alan

January 26, 2005 12:07 AM Forum: CCD Imaging and Processing/Solar System

Re: one of my best old friends!

Posted By Alan Friedman
That was a great week of solar activity -

... and a spectacular hi resolution image. Looks like fur.

Alan

February 15, 2005 05:58 PM Forum: CCD Imaging and Processing/Solar System

solar close-up in white light

Posted By Alan Friedman
Hi all -

Just returned from a week in Cedar Key, FL. Did not enjoy the transcendent seeing of 2004, but 5 days of observing in shirtsleeves was wonderful nevertheless. grin

When the air settled, the sun offered some very fine images. This was taken with a full aperture Baader filter on my A/P 10" mak cass at f14.6 - about 20 frames averaged from my new homemade firewire webcam in a tin box - I call it the Altoids camera. The umbral area of the larger sunspot is about 2 earth diameters across. Will share some H-Alpha and saturn shots once processed.

best -
Alan

February 17, 2005 03:18 PM Forum: CCD Imaging and Processing/Solar System

solar chromograph/ 2-9-05

Posted By Alan Friedman
Even on a quiet day, the sun puts on a show in H-Alpha!

Taken the same day as the white light image posted earlier, this is a mosaic of 9 images taken through a solarmax90/A/P traveler at prime focus using my Altoid B&W firewire webcam. Approximately 100 frames averaged for each panel of the mosaic.

best,
Alan

February 18, 2005 02:28 PM Forum: CCD Imaging and Processing/Solar System

Re: Saturn on February 16th.

Posted By Alan Friedman
Hi Damian -

Fine work. This looks very much like the detail I am seeing in my images from the best nights I have had so far this winter. You've done a great job processing with a gentle hand.

best,
Alan

February 21, 2005 06:28 AM Forum: CCD Imaging and Processing/Solar System

saturn from north and south

Posted By Alan Friedman
Hi -

An LRGB saturn that took 1200 miles to complete! Luminance frames taken during a brief window of good (6-7) seeing in Cedar Key, FL on February 8 - combined with lower resolution RGB images taken Jan 31 from Buffalo. Aprox 750 luminance frames selected from 5000. Altoid B&W and Unibrain400i color firewire webcams were used to capture the frames through a 10" A/P mak/cass and BaaderFFC. Way too many hours of processing in Keith's Image Stacker and Adobe Photoshop on a Mac.

best,
Alan

February 22, 2005 03:44 AM Forum: CCD Imaging and Processing/Solar System

Re: website revision/ update

Posted By Alan Friedman
Hi Eric -

Nice website and some fantastic images. Your January 31 saturn shows superb detail.

Alan

February 22, 2005 06:50 PM Forum: CCD Imaging and Processing/Solar System

Re: firewire cams: advantages/ disadvantages?

Posted By Alan Friedman
Hi Eric -

I think your summary is correct, although it appears the new Imaging Source 21BF04 camera has significantly higher sensitivity. I am limited to cameras that can be controlled by a Mac using the AstroIIDC camera control application so will have to wait until that camera is supported to try it.

If you constantly fiddle with settings on your ToUcam like I do, you will appreciate the real time response via Firewire - and also the much faster capture rate and the large volume of sharp frames that can be gleaned during those brief moments of steady air.

Alan

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