July 16, 2008 Archives

Wed Jul 16 21:56:06 MST 2008

In the Beginning ...

The Bunker Ranch Observatory has long been a dream; making it a reality started in the summer of 1997, with an article in the June issue of Astronomy Magazine about modifying a large utility building kit into a rolloff-roof observatory. The author, Dave Kriege of Obsession Telescopes, described how to "Build a Backyard Observatory for Peanuts".

So the search started for a suitable piece of property, with the basic considerations being that it had to be way out in the middle of nowhere, but still have access to phone and electricity. These two goals often turned out to be mutually exclusive; however, a number of possible locations did emerge. The first piece of property we tried to buy was in a great location with perfect geography -- high up on the south side of a hill, with a forever view to the south, east, and west. It was, however, too expensive and completely covered with softball-sized granitic rocks.

We finally ended up in New Mexico, on a 40-acre plot of land that is unfortunately not on a hill, but rather in a valley. It's nice and flat -- but it would have been preferable to have been up off the valley floor. It's in a great area, though.

During the two-year search for land, the plan for the observatory evolved away from a wooden rolloff building. The plan now was to build a metal building and to provide some temporary living quarters; as the site was 175 miles by road from our home in Tucson, single-night trips would be, to say the least, impractical. However, the original "peanuts" idea was now completely out the window (or at least it would have been, if the planned building had had any windows).

I acted as my own general contractor for the building and associated facilities, and secured a builder. He backed out of the project after a slow start, but found another builder for us and the project began in earnest.

It wasn't too long afterward that I began to learn just how many hundreds of details a general contractor had to manage ...

Posted by terry | Permanent Link | Categories: Historical entry

Wed Jul 16 10:59:10 MST 2008

Catching Up on History

I wish I had started this a LONG time ago; a running commentary on the building of the Bunker Ranch would have been fascinating reading (at least to ME!). As it is, I'll start out at the present and add some history entries as the mood strikes me.

At the moment, there's no imaging capability at the observatory, not that it matters much in the monsoon season here in the desert southwest. The 400mm Hypergraph is mounted on the south pier atop the AP1200GTO mount, and the Paramount ME on the north pier is carrying a light load -- a Vixen VC200L mounted side-by-side with a Takahashi Sky 90.

A local machinist is making a fixture that will attach to the VC200L and mate to an FLI PDF focuser on the other end. It'll be adjustable, so I can find the exact focus point for the CCD camera. Then I'll have a fixed-length adapter made, and modify the adjustable adapter to do the same thing for the Pentax 67 and the Nikon F3.

(I clearly need a second PDF focuser; two scopes and only one focuser for two telescope setups doesn't work out quite correctly arithmetically.)

The Hypergraph isn't image-capable right now because the adapter I had made to couple the FLI PDF to the Van Slyke Sidewinder wasn't long enough -- the excessively-long brass threaded rods on the scope side of the focuser contact the Sidewinder and prevent it from moving to its full extension. Things go downhill.

Posted by terry | Permanent Link | Categories: Status update