Scattered Thoughts . . .

I was evaluating a new solar filter on two separate mornings over the past week.  The views weren't as good as they could be.  These views were brighter than necessary and my research was indicating that reducing the aperture of the telescope might produce better results.  In particular, I was hoping to find a way to see more detail on the surface of the sun's chromosphere.  I always have some scrap lumber lying around so I went looking for a small scrap of 1/4" plywood.  I could cut a hole of the correct size and then cut out the outside diameter.  This would then fit inside the dew shield on my telescope.  The inside hole would provide the new, smaller aperture for the telescope. In this case, my intention was to cut a 60mm hole.  Unfortunately, the drill bit walked a bit when cutting so I screwed up the hole slightly.  Fortunately, I managed to salvage the project by making the hole a 63mm diameter hole instead.  This would change my f5.8 telescope to an f6.67 telescop

W hen I brought my telescope and mount outside the other day to do some solar observing, a leg bracket broke on my tripod as I was opening up the tripod legs.  This bracket holds the leg in place when it is in use and the tripod is useless with a broken bracket.  My day wasn't starting out too well. I wanted to use this particular telescope mount because it has slow motion control knobs.  These slow motion controls make it easier to keep the sun in the center of my view.  As I slowly turn one knob, the sun stays in the center of my view.  Now I had to move the telescope over to another small mount.  I went back to my new-ish Alt-Az manual mount.  I really wanted to use those slow motion controls for this session though so this was a bit of a letdown.  Having another thing break and added to my to-do list was an even bigger letdown.   As you can see in the photo, the tabs that hold the spreader bar snapped off.  I had fairly recently rebuilt this mount with ball bearings and a bette

I had previously written about solar imaging in Calcium K (CaK).  In that imaging session, I had used one of my usual nice little refractor telescopes (Skywatcher ED 72mm refractor).  This time I am revisiting an imaging session done in white light when I used a really lousy little Maksutov-Cassegrain telescope.  This telescope is the Orion Apex 102mm Maksutov-Cassegrain (uggg...  I really hate a lot of characteristics of all reflector telescopes and this tiny little guy is no exception) .   Seriously, I do not like this little telescope at all.  I was told that a Mak-Cass would be "razor-sharp" yet this Mak-Cass does not provide a crisp image when compared to any of my refractor telescopes...  not even when compared to my sub-$100 70mm achromatic telescope.  It occasionally needs to be tediously collimated so that the mirrors are perfectly aligned otherwise the views are even significantly worse.  Collimating a Mak-Cass is tedious and difficult.  It requires a temperature

T he moon was shining brightly through our living room window as we headed to the bedroom so I figured I would take a quick view through that new little Orion 102mm Mak-Cassegrain telescope I evaluated recently.   Sheila was in the bathroom getting ready for bed so I had a few minutes to kill.  I went to retrieve a lightweight mount and the telescope and set it up at the window to take a quick look...  I easily found the bright moon in the sky and saw nothing but out-of-focus mush.  I again repeated what I had been saying all along about this little Mak-Cass telescope...  "what a piece of junk." This prompted me to go retrieve my Skywatcher 72mm refractor which is equally as small but with a much short focal length.  I brought that out to the living room and I was immediately treated to a stunningly sharp view of the moon.   Viewing through a window with optics is a no-no because glass will cause all sorts of problems.  Heat escaping the house through an open window is often

Introduction T his blog entry is a little different than my usual entries.  Then again, my thoughts are often a bit scattered so there isn't really a consistent theme to this blog.  I do sometimes write about my hobbies including astronomy but this blog entry is not one of my typical short blog entries about viewing this or that or about some small astronomy project.  This is more along the lines of a casual review of my thoughts about a telescope.  If you are more interested in some astrophotography images rather than read about a boring telescope evaluation, then just scroll down to the closing of this blog entry (about halfway down this page). Quite often, people who are wanting to get involved in backyard astronomy for the first time ask other astronomers which telescope would be best to purchase as their first telescope.  This is a very common question that is asked at least once a day.  As a result, I find myself trying to provide advice to astronomy beginners a few times eac