Is that what's called a folded Newtonian? ------------------------------ On Tue, Oct 29, 2013 12:06 PM MDT M Wilson wrote:

So, is there a name for this type of configuration?   I'm betting it isn't Newtonian.   When is there going to be another SLAS field trip to Mike's scope?  I didn't see the last anouncement until after the outing was filled.

________________________________ From: Chuck Hards <chuck.hards@gmail.com> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Tuesday, October 29, 2013 11:49 AM Subject: Re: [Utah-astronomy] Journey to the 1.8 meter

You're exactly right.  The secondary reflects the light path back down the tube at an angle, and is intercepted outside the edge of the primary mirror.  It was done this way to reduce the needed truss length, and keep the viewing position much closer to the ground.  A shorter ladder can be used this way.  The secondary mirror is round, not elliptical.

I missed seeing Sheena on Sunday by just a few minutes, over at Steve's.

On Tue, Oct 29, 2013 at 11:15 AM, M Wilson <astro_outwest@yahoo.com> wrote:

...

Getting back to Mike Clements telescope, there's an article in todays Salt Lake Tribune that has photos of the mammoth thing.

I can not figure out what sort of reflector it is.  It sort of looks Newtonian except that I am not sure where the eyepiece is located.  It looks as though it might be half way up one of the trusses and is at an odd angle while the secondary mirror is on a less than 45 degree angle.

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