1. Report: First Light with 12" Sky-Watcher Flextube

    by , 09-16-2013 at 06:48 PM
    I took my 12" Sky-Watcher Flextube to the Durham Region Astronomical Association's dark site last night for the first time and found that the location was a few minutes further and more difficult to get to than Long Sault Conservation.

    Moon: With a 75% full moon, it lit up the haze so much that I could not even resolve M31. So I put my shades on and observed the moon instead. The details ...
  2. DIY Custom Shroud for 12" Sky-Watcher Flextube

    by , 09-14-2013 at 04:29 AM
    Rainy days and cloudy nights make me so restless. Tonight was another one of those nights. All day, I had been thinking about custom cutting a foam sleeping mat as a shroud for my Sky-Watcher 12" Dobsonian Flextube. But on the way home, I came up with something a little more complicated and time-consuming. A custom-made cloth shroud.

    42.5" x 23" black cloth ...

    Updated 09-25-2013 at 08:40 PM by BrownBrady

    Tags: diy shroud Add / Edit Tags
  3. How to Centre the Secondary Mirror by Using a Camera Phone

    by , 09-10-2013 at 03:51 AM
    Today, I learned a lesson in troubleshooting a collimation problem with my new dobsonian telescope. When I took the secondary mirror off to install a washer, I could not properly get it collimated with my laser collimator on reassembly. One problem with laser collimators is that it assumes that the secondary mirror is already centred under the focuser. But that is easier said than done. Until now.


    Updated 09-25-2013 at 08:02 PM by BrownBrady

  4. Bought a used 12" Sky-Watcher Dobsonian Flextube Truss

    by , 09-06-2013 at 04:25 PM
    Well into my first month of my astronomy hobby, and I'm already on my 4th telescope gear: a 12" Sky-Watcher Dobsonian with collapsible trusses. Standing next to my 8" newt, it looks like a monster scope.

    What levels can you find the Green Power Stars on Super Mario Galaxy?-12-skywatcher.jpg

    The Good
    I believe I got a pretty good deal with this one because it has several upgrades including:

    - dual speed focuser
    - stiffer primary mirror springs
    - smoother azimuth bearings
  5. Lin Equatorial Mount Maintenance Project

    by , 09-01-2013 at 01:25 PM
    My equatorial mount is over 10 years old and it has been very 'sticky'. It is a 'Lin-Optics' brand-name mount that I cannot find of documentation on the Internet. Last week, I attempted to disassemble it to replace the lubrication but could not figure out how to remove the inner shafts.

    This weekend, I finally had more time to look into the issue further. I needed a little bit more time to carefully figure out which set screws were meant to be removed, and which were meant to be tightened ...
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