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Lion Nebula SH2-132 - RC71

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Posts Made By: Alan Friedman

June 11, 2006 06:18 PM Forum: CCD Imaging and Processing/Solar System

RGB filter question

Posted By Alan Friedman
A couple of things I am wondering - if the sets advertised as parfocal (ie the Astrodon RGB) perform so in a planetary application, and does the efficiency of one set over another translate to a noticeable change in the gain/shutter setting needed?

Alan

June 13, 2006 10:05 PM Forum: CCD Imaging and Processing/Solar System

Jupiter in IR June 3rd 2006

Posted By Alan Friedman
Hi Wes -

Very good detail - I would like to see your image with a fast camera swap. Be sure to give the red filter a try too. The IR stream appears more contrasty, but judging the conditions by the quality of this IR image - I'm guessing that a R image would show better resolution.

cheers-
Alan

June 15, 2006 01:39 PM Forum: CCD Imaging and Processing/Solar System

Jupiter & Io June 7th 2006

Posted By Alan Friedman
Wes - Yes, color - thank you!

A very fine image.

best,
Alan

June 18, 2006 04:19 PM Forum: CCD Imaging and Processing/Solar System

Jupiter from 5/29/06

Posted By Alan Friedman
Hi John -

That is a very nice image of Jupiter with your ToUcam. Not sure where you are located, but Jupiter is looking pretty "mushy" from most mid-northern locations this year. The eye is very good at averaging a pulsating image into a sharp impression at the eyepiece - the camera is not as good at this magic.

When Jupiter is low there is an advantage to using a monochrome camera and capturing images separately in IR, R, G, B rather than across the full visible spectrum.

Thanks for posting -
Alan

June 18, 2006 04:21 PM Forum: CCD Imaging and Processing/Solar System

Mars April 26, 2006

Posted By Alan Friedman
Hi Paul -

Thanks for sharing your many great images of mars this season - what dedication!

best -
Alan

June 20, 2006 09:19 PM Forum: CCD Imaging and Processing/Solar System

Jupiter 06/19 Aborted Merger

Posted By Alan Friedman
Hi Chris -

A gorgeous image full of detail. Congratulations on the great press in the latest issue of S&T!

Alan

June 20, 2006 09:22 PM Forum: CCD Imaging and Processing/Solar System

6 inches of Jupiter

Posted By Alan Friedman
Thanks for sharing your thoughts on this image - much appreciated.

best -
Alan

June 21, 2006 02:43 AM Forum: CCD Imaging and Processing/Solar System

Gassendi June 7th 2006

Posted By Alan Friedman
Hi Wes -

Beautiful portrait - and Gassendi will be back up high in a couple of months, Jupiter will be a bit longer!

cheers-
Alan

June 22, 2006 03:36 AM Forum: CCD Imaging and Processing/Solar System

Jupiter Red Spots from May

Posted By Alan Friedman
Hi Peter -

A very nice set of spots! The processing looks fine except for a little clipping around the edge of the disk creating a scallopped look to the planet limb in some images. This might have come from applying too much contrast to the background sky? The disk contrast and colors look very good to my eye.

Alan

June 25, 2006 03:53 AM Forum: CCD Imaging and Processing/Solar System

East side of in shadow Plato

Posted By Alan Friedman
Hi Wes-

Great image with a fine view of that delicate sinuous rille that snakes along the edge of the "rubble." I don't think there are very many images that capture this at all - much less with this level of contrast.

best -
Alan

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