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Astronomers

A group for people who enjoy the stars. :)

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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 April 24, 2015 at 7:12pm

A doublet.

Comment by Mick Ohrberg on April 24, 2015 at 7:06pm

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 April 24, 2015 at 6:57pm

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 April 24, 2015 at 5:54pm

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 freesaver.com. 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. 

Comment by Patricia on March 21, 2015 at 7:02pm

I have some as computer wallpapers.......

Comment by Joan Denoo on March 21, 2015 at 7:00pm

Gerald, I like your description of the challenges facing Philae. What an adventure that has been. When I was a kid camping out on the St. Joe River, in northern Idaho, the nights were so clear of dust and light pollution, we thought we could see forever. 

Comment by Patricia on March 21, 2015 at 6:56pm

They are absolutely fascinating. Camping is where we saw, & heard them too, & then we had a good siting while on the night Greyhound bus to Saskatchewan in 2000.

 

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