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The Telescope.
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"Any observatory is only as good as its
telescope and any telescope is only as good as its primary mirror".
However there are a thousand things that can make a telescope under
perform. The challenge is to make a telescope that is as good as its
primary mirror. Obviously throwing large amounts of money at the
project would probably work! However unless you are building a large
orbiting telescope some compromises are in order.
My priority was for good tracking and go to pointing
that could be used with a ccd camera left in place. So I bought 14"
worm wheels and the bushes and bearings to go with them. The rest of
the scope was pretty much DIY. The base is similar to a dobsonian
and the alt bearings are held on an angle iron frame with wood
inserts. This wood helps to damp vibration associated with welded
metal mounts.
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The turntable is supported by 3 bearings riding on
a aluminum disc. The central shaft is hollow to take the wiring
and has the worm wheel fixed to it.
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The Poor Meadow Dyke Galleries are now open. THE
GALLERIES |
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See the full range of Atik cooled CCD cameras for
astronomy on the Atik Website
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