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From movie graphics to scientific tool

Started by Ruth Anthony-Gardner. Last reply by Joan Denoo Mar 26. 3 Replies

Two bright spots on Ceres.

Started by Visvakarman Svetasvatara-Upanish. Last reply by Gerald Payne Mar 19. 1 Reply

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Comment by Gerald Payne on Saturday

I think I will have to work out a way as you say with a longer length tripod and an observing chair. As you say at different altitudes your bound to get varying degrees of comfort no matter where the eyepiece is situated.

Comment by Gregg on Saturday

Regardless of the type of telescope you have, they are sometimes going to be in positions where the eyepiece is in an awkward position.  I personally use a 10" Schmidt-Cassegrain on a fork mount and when looking directly overhead, the eyepiece is low although it's not as bad as a refractor scope would be.  The short tube length of the SC helps keep the eyepiece within a relatively small area (The tube length is only around 15" long, but it has a focal length of 2500mm.  However, by carefully adjusting the tripods leg length and using an observing chair, I usually don't have any problems.  I also have an 8" Newtonian which is better than a refractor as far as eyepiece comfort is concerned.  But since the eyepiece is at the front end of the scope instead of the back, there have been times I've had to use a step stool to reach the eyepiece and I'm 6' 2" tall.  I've used about every telescope style and mount and for observation, I prefer the SC for mount to anything else.

Comment by Gerald Payne on Saturday

I've got an equatorial 5 but as I say unless I'm gonna get easier access to the eyepiece it would be pointless swapping.

Comment by Gerald Payne on Saturday

A doublet.

Comment by Mick Ohrberg on Saturday

Gerald - the Newtonians have one big drawback: The eyepiece can end up in really backbreaking positions, depending on if you have an alt-az mount. If you have a GEQ mount you can normally rotate the scope in the mounting rings to get the ep in a good spot for you. 

Is your refractor a doublet or a triplet? A 150mm refractor scope could command a fair price, depending on the optics configuration.

Comment by Gerald Payne on Friday

I own a 150 refractor. Due to back problems I can no longer comfortably access the eyepiece. I've been thinking of trading it in for a Newtonian. I wonder if anyone's got any experience with the comfort of a Newtonian. Their lining up for a swap but I don't want to end up in the same boat with a lesser scope.

Comment by Gerald Payne on Friday

Fantastic close up of comet 67P on ESA's flicker. No news about Philae sadly.

Comment by Idaho Spud on March 22, 2015 at 2:06pm

Beautiful Aurora light shows Patricia.  I think the one like a rainbow is especially gorgeous.  Yellow, green, purple, and blue.

I've never seen any, but would love to.

Comment by Patricia on March 21, 2015 at 7:12pm

This one is a beautiful animated screensaver for Windows, found at I have this on my desktop pc.

Comment by Joan Denoo on March 21, 2015 at 7:05pm

Patricia, these are beautiful computer wallpapers. They make me want to dance to their rhythms. 


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