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Lion Nebula SH2-132 - RC71

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Posts Made By: Stephen Fugardi

July 31, 2007 10:33 AM Forum: CCD Imaging and Processing/Solar System

Jupiter f25 7/25 W/GRS & Io

Posted By Stephen Fugardi
Attached is a 1hour plot of mirror & ambient temps during my cooldown period. You can see even with the lymax I am only able to achieve a 1degC delta. Also during this time I have a box fan running on max blowing into my observatory right onto the scope. The asymptotic slope of the delta suggests that this method will only work if the rate of ambient cooling is slower. I will try this again with a 40mm peliter cooler intially trying to subcool the mirror to 2degC below ambient, and then let it stabilize. Matching the ambient within 1 hr is my goal.

Regards,
Steve

August 2, 2007 09:56 PM Forum: CCD Imaging and Processing/Solar System

Jupiter f25 8/1/07

Posted By Stephen Fugardi
Even using the lymax for 2.5hrs after a 90degF day couldn't pull the glass closer than within 1.2degC of ambient

Regards,
Steve

August 2, 2007 10:01 PM Forum: CCD Imaging and Processing/Solar System

Jupiter f25 8/1/07

Posted By Stephen Fugardi
Stacking a little over 100frames from Altair @f25 focused & defocused enabled me to achieve my best collimation to date. These final shots were taken with the dew shield on. Basically, I only have about 30min to tweak the knobs before dew sets so I make sure to have the shield on by then.

Regards,
Steve

August 2, 2007 10:04 PM Forum: CCD Imaging and Processing/Solar System

Jupiter f25 8/1/07

Posted By Stephen Fugardi
With the bright moon only a few degrees away, conditions were not ideal for imaging Uranus. I tried the 2.5x barlow but the image brightness was too dim. The best 300 frames are stacked and resized 2x.

Regards,
Steve

August 2, 2007 10:09 PM Forum: CCD Imaging and Processing/Solar System

Jupiter f25 8/1/07

Posted By Stephen Fugardi
I was still out as this last planet reached its transit. At a mag of 7.8, there's no way to use a barlow with my Toucam. At 2.3" in size and low in the sky, I seemed to save the hardest one for last. After losing it several times, I managed to collect a few avis, with the best 300frames stacked 2x resized. Got to bed finally at 3:30

Regards,
Steve

August 3, 2007 01:09 AM Forum: CCD Imaging and Processing/Solar System

Jupiter f25 8/1/07

Posted By Stephen Fugardi
These are my first lunar shots in a few years motivated by some of Stefan's recent excellent posts. I originally tried to use a 2.5x barlow but the image instability forced me to go prime. I will be putting a nice set of narrow band filters on my wish list. I would have tried to stack different colored filters with my IR filter, but at 3AM I was too lazy to walk all the way back to the garage to get them. I just downloaded the Virtual Lunar Atlas to help confirm what I was imaging, and the program is awesome. http://www.astrosurf.com/avl/UK_download.html

Regards,
Steve


August 3, 2007 01:11 AM Forum: CCD Imaging and Processing/Solar System

Jupiter f25 8/1/07

Posted By Stephen Fugardi
Some small craterlets can be seen but f25 with the proper filter would help bring them out.

Regards,
Steve

August 3, 2007 01:14 AM Forum: CCD Imaging and Processing/Solar System

Jupiter f25 8/1/07

Posted By Stephen Fugardi
f10 flats were not used in these lunar images, but I did try to use my f25 flats which of course did not work...

Regards,
Steve

August 5, 2007 12:20 PM Forum: CCD Imaging and Processing/Solar System

My 1st Uranus image & Moon in Criterion RV-6

Posted By Stephen Fugardi
Jason, great shots especially considering single exposure, afocally taken! You should really consider getting a nice DMK21 or webcam. Thanks for posting

Regards,
Steve

August 8, 2007 11:14 AM Forum: CCD Imaging and Processing/Solar System

Jupiter Series Aug 4-5, 2007. South Carolina

Posted By Stephen Fugardi
Jim, great sequence of images. If you could integrate them into a .gif file, you would have an awesome transit movie. Thanks for posting

Regards,
Steve

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