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Yard cannon

Started by [email protected], 10/20/2008 08:02AM
Posted 10/20/2008 08:02AM Opening Post
Hello:

Here's the first refractor that I've made. It's a 144 mm f/14.5 achromatic doublet. The tube is aluminum from Hastings, and the scope is strapped to a G-11 mount. Without a pier extension, the eyepiece is still about 6" off the ground when the scope is pointed at zenith. I use it most often for star parties at local schools, where the low eyepiece height helps make the scope a bit more kid friendly.

Cheers
Mike Connelley

Attached Image:

msc@ifa.hawaii.edu's attachment for post 44260
Posted 10/20/2008 04:24PM #1
Hey Mike,

That's cool.
That refractor will look even nicer on an NJP. smile

Wei-Hao

Wei-Hao Wang
http://www.aoc.nrao.edu/~whwang