<![CDATA[Hardware]]> http://www.slas.us/gallery2/main.php?g2_itemId=1932 en-us Gallery 2 RSS Module, version 1.1.7 Fri, 29 Mar 2024 02:10:52 -0600 120 http://www.slas.us/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=1936 <![CDATA[Hardware]]> http://www.slas.us/gallery2/main.php?g2_itemId=1932 <![CDATA[Retina]]> http://www.slas.us/gallery2/main.php?g2_itemId=5657 http://www.slas.us/gallery2/main.php?g2_itemId=5657
This labeled (left) and unlabeled (right) image of my retina is not technically "hardware," but rather it is "wetware." The average diameter of the fovea, that is responsible for central vision, is about 6mm, and the average diameter of the macula, that is responsible for peripheral vision, is about 22mm. With night vision adaptation, the pupil in older adults expands to 4-6mm. About the time of my birth, light left HD99492, the dimmer 7.5 mag. of two stars in the true binary system 83 Leo, and and its possible candidate exoplanets HD99492b and c. After traveling 56 light years or 5.3x10^17 meters, the light landed on the above detector, and after conversion into electro-chemical signals, the information in the light traveled the last 0.15 meters of its journey down the optic nerve where the real magic happened.]]>
Kurt Allen Fisher photo Sat, 04 May 2013 13:16:02 -0600
<![CDATA[PST Heat Reflector Shielding]]> http://www.slas.us/gallery2/main.php?g2_itemId=3593 http://www.slas.us/gallery2/main.php?g2_itemId=3593
White posterboard anti-heating shields on Celestron low-end mount. Keeps mount and PST at slightly above nominal operating temps during high temperature summer days. White posterboard is temporarily held to mount by glue-on velcro strips and can be removed.]]>
Kurt Allen Fisher photo Mon, 26 Jul 2010 22:53:12 -0600
<![CDATA[PST Imaging - 40mm double stack]]> http://www.slas.us/gallery2/main.php?g2_itemId=3298 http://www.slas.us/gallery2/main.php?g2_itemId=3298 ]]> Kurt Allen Fisher photo Sat, 24 Apr 2010 17:37:44 -0600 <![CDATA[PST Imaging - counterweight detail]]> http://www.slas.us/gallery2/main.php?g2_itemId=3295 http://www.slas.us/gallery2/main.php?g2_itemId=3295 ]]> Kurt Allen Fisher photo Sat, 24 Apr 2010 17:37:44 -0600 <![CDATA[PST Imaging Setup - Weight balanced]]> http://www.slas.us/gallery2/main.php?g2_itemId=3292 http://www.slas.us/gallery2/main.php?g2_itemId=3292 ]]> Kurt Allen Fisher photo Sat, 24 Apr 2010 17:36:47 -0600 <![CDATA[ETX Imaging Test Setup]]> http://www.slas.us/gallery2/main.php?g2_itemId=2326 http://www.slas.us/gallery2/main.php?g2_itemId=2326 ]]> Kurt Allen Fisher photo Mon, 07 Sep 2009 16:32:05 -0600 <![CDATA[Meade ETX Camera Counterweight]]> http://www.slas.us/gallery2/main.php?g2_itemId=2323 http://www.slas.us/gallery2/main.php?g2_itemId=2323
Camera counterweight machined for my Meade ETX 125 from an example on the Meade4 forum. The bar also can be reversed to stick out the eyepiece side of the scope as a quick fix to the ETX's tendency to "rubber band" when the scope is used at angles lower than 25 degrees (without retraining the drives).]]>
Kurt Allen Fisher photo Wed, 02 Sep 2009 15:39:42 -0600
<![CDATA[Solar Mount - rear view]]> http://www.slas.us/gallery2/main.php?g2_itemId=1938 http://www.slas.us/gallery2/main.php?g2_itemId=1938
Dedicated visual solar mount based on suggestions from Bill Cowles. Celestron GT114 mount head with Alpine Astronomy Vixen Head Kit, Orion Right-Angle Bracket and optional Televue 2.5x Powermate. The Celestron GOTO mount-base computer aligns on the Sun alone. Solar observing setup for very relaxed viewing. Tracks 5 mins plus before tracking needs a tweak.]]>
Kurt Allen Fisher photo Sat, 06 Jun 2009 19:16:25 -0600
<![CDATA[Solar Mount - side view]]> http://www.slas.us/gallery2/main.php?g2_itemId=1933 http://www.slas.us/gallery2/main.php?g2_itemId=1933
More of the Celestron GT114 mount-based visual solar setup. The tracking with eye relaxed viewing really also lets you get the most out PST at higher magnifications.]]>
Kurt Allen Fisher photo Sat, 06 Jun 2009 19:28:52 -0600