Hale in Motion

[venusbrain]

With your permission, I'd like to use part of this video in another video explaining the erroneous appearance of shadows and lens flares shaped like the prime focus cage in some of the images produced by this telescope.

[Cyber0Bill]

Awesome video! I am going to be building a telescope modeled after the Hale (Though much much smaller, obviously) and this video is a tremendous help at visualizing everything. THANKS! :)

[joshig1983]

That sounds like fun. Is the smaller version going to actually work as a telescope? Is this for a hobby?

[Cyber0Bill]

Yes, it will be a fully functional telescope. I'm aiming right now for a 16", though it wont be the same type of telescope as the Hale, mine will just be a typical Newtonian type, but it will be in a horseshoe mount like the Hale.

[joshig1983]

Neat. Is this just for a hobby or are you planning to sell it? I don't have a reference but I remember a few things about Hale from looking at a book a while ago. It 3 usable focal planes: as a Cassegrain, side, and primary mirror focus. Focuses are in the human sized central obstruction(primary mirror focus), behind the centre of primary(Cassegrain), and off to the side as shown in the video. Someone can actually sit in the obstruction and observe there. lol

[Cyber0Bill]

Oh, yeah, I just read "The Perfect Machine", is that the book you are referencing? It's pretty in-depth about the whole thing!! :)

I'll be doing it just for a hobby. I am in an astronomy group here in San Diego, and we own an observatory area out in the desert. I am working on getting approval to build a 12' diameter dome observatory w/ the 16" horseshoe mount telescope inside... all remote controllable over the internet.

I wish I had the money for a 200" version. ;)

[hharris4]

A very cool video about a historic ground-breaking telescope named after George Ellery Hale. This telescope is still used for scientific research by Cornell University and the Jet Propulsion Laboratory