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Douglas Rollain

Lion Nebula SH2-132 - RC71

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Posts Made By: Alan Friedman

January 15, 2006 10:17 PM Forum: CCD Imaging and Processing/Solar System

Plato

Posted By Alan Friedman
Hi Johannes - I echo the other comments - it is a very beautiful image.

Alan

January 16, 2006 12:44 AM Forum: CCD Imaging and Processing/Solar System

Some sun!

Posted By Alan Friedman
Hi Luca -

I think you are using it just fine. With good seeing the results should be superb.
ps - the sun was out here today too.

best,
Alan

January 16, 2006 05:39 PM Forum: CCD Imaging and Processing/Solar System

Jupiter 1/14 GRS

Posted By Alan Friedman
Hi Chris -

I really like your touch in processing this image. You have a great location for Jupiter - it will be too low for many of us to capture well over the next few years - I am looking forward to following your images.

best,
Alan

January 16, 2006 07:22 PM Forum: CCD Imaging and Processing/Solar System

Saturn January 12, 2006

Posted By Alan Friedman
Hi Jim -

Very nice - and it has that UK touch to the processing smile (but where's the south polar spot?!)

best,
Alan

January 16, 2006 07:32 PM Forum: CCD Imaging and Processing/Solar System

Best method for planet focusing

Posted By Alan Friedman
Hi Tom -

I focus using the real-time image of the planet (or the moon or sun) on the laptop screen. When the seeing is fair to good, this method usually works fine. The capture software I use has a count measure that records the level of the brightest pixel, but I usually find that visual focusing is easier and just as accurate for most subjects.

With the higher (uncompressed) download rates of a firewire or USB 2.0 camera the image responds immediately to movement of the focuser - this is one of the many advantages of these cameras for planetary imaging.

HTH -
Alan

January 17, 2006 10:45 PM Forum: CCD Imaging and Processing/Solar System

Lunar crater Hainzel

Posted By Alan Friedman
Hi Wes -

The footprint shaped crater is a whimsical subject - especially so given the astounding resolution in your images, seeing a footprint seems plausible. smile

I always enjoy seeing your rejects!

cheers-
Alan

January 21, 2006 12:17 AM Forum: CCD Imaging and Processing/Solar System

Saturn 1/19

Posted By Alan Friedman
Hi Chris -

A very fine saturn - the view of the planet through the Cassini division is also well shown - nice work!

Alan

January 23, 2006 06:42 PM Forum: CCD Imaging and Processing/Solar System

Deslandres et al

Posted By Alan Friedman
Hi Jim -

A fine mosaic with lots of detail to enjoy. Thanks for posting it.

best,
Alan

January 25, 2006 05:48 PM Forum: CCD Imaging and Processing/Solar System

Longomontanus

Posted By Alan Friedman
Hi Johannes -

Wonderful - It is great that your 16" allows the DMK image to be enlarged to this extent with very little compromise.
BTW - I just happened on your recent image of the Horsehead region. That is really a horse of a different color - truly stunning.

best,
Alan

January 27, 2006 04:39 AM Forum: CCD Imaging and Processing/Solar System

Saturn storm

Posted By Alan Friedman
Great work!!

Alan

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