Chatroom
 

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Bad Astronomy and Universe Today Forum > Space and Astronomy > Astronomy
Register FAQ Members List Calendar Mark Forums Read

   

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 29-June-2005, 09:47 AM
Padawan's Avatar
Padawan Padawan is offline
Senior Member
 
Join Date: Apr 2004
Location: Sweden
Posts: 327
Default The Giant Magellan Telescope

Quote:
Summary - (Jun 27, 2005) Workers at the University of Arizona's Steward Observatory Mirror Lab have begun pre-firing one of the 8.4 metre mirror segments as part of the construction of the Giant Magellan Telescope (GMT). When it's finally completed in 2016, the GMT will be the largest telescope in the world, consisting of 7 of these 8.4 metre mirrors aligned to work as a single mirror 25.6 metres across - with 10 times the resolution of the Hubble Space Telescope.
Link

Now that is a telescope I wouldnt mind having in my backyard Making it fit is another thing though :-k.
Seriously though, I hope I'll be alive to see the pictures it takes when it's complete.
__________________
.
Fahad Sulehria,
Astronomical Artist,
Administrator of Nova Celestia.
Reply With Quote
  #2 (permalink)  
Old 29-June-2005, 02:53 PM
ToSeek's Avatar
ToSeek ToSeek is offline
Vulcan Moderator
 
Join Date: Oct 2001
Location: Greenbelt, MD
Posts: 24,215
Default

Earlier discussion of the GMT here:

http://www.badastronomy.com/phpBB/vi...c.php?p=381818
__________________
Everything I need to know I learned through Googling.
Reply With Quote
  #3 (permalink)  
Old 31-August-2005, 04:42 PM
01101001's Avatar
01101001 01101001 is offline
Senior Member
 
Join Date: Mar 2004
Posts: 10,723
Default

Delicious.

The San Jose Mercury devoted a full page, Page 3, to an article, with a half-page color picture of two workers on a platform above the glass. The story came from the New York Times, so it's likely in a lot of papers, like this: The Rutland Herald: Racing to build a giant telescope. I hope they all got the giant-picture treatment.
__________________
0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0....
Reply With Quote
  #4 (permalink)  
Old 31-August-2005, 10:37 PM
Maddad Maddad is offline
Senior Member
 
Join Date: Jan 2005
Location: Royersford, Pennsylvania, USA
Posts: 388
Default

I used to live in Rutland and subscribed to that newspaper.
__________________
http://members.elirion.net/~maddad
There are ten kinds of people. Those that understand binary, and those that do not.
Reply With Quote
  #5 (permalink)  
Old 31-August-2005, 10:46 PM
Nicolas's Avatar
Nicolas Nicolas is online now
Senior Member
 
Join Date: Sep 2004
Location: Belgium
Posts: 11,229
Default

I was thinking about using such a mirror to warm my round backyard swimming pool .

10* Hubble's resolution, does that take atmospheric disturbances into account? I know that those don't really influence resolution, but in practice they do limit the size of viewable objects due to haziness.
__________________
To the regular visitor of internet bulletin boards it is clear that it's an excellent idea your parents get to choose your real name.
Reply With Quote
  #6 (permalink)  
Old 01-September-2005, 03:05 AM
Hale_Bopp Hale_Bopp is offline
Senior Member
 
Join Date: Oct 2001
Location: Tucson, Arizona
Posts: 614
Default

Quote:
Originally Posted by Nicolas
I was thinking about using such a mirror to warm my round backyard swimming pool .

10* Hubble's resolution, does that take atmospheric disturbances into account? I know that those don't really influence resolution, but in practice they do limit the size of viewable objects due to haziness.
I believe the 10 times Hubble's resolution assumes the GMT will be using a pretty good adaptive optics system to remove the blurring of the atmosphere.

Rob
__________________
"Crackpot theories 1 : Regular theories a billion." Fry
Reply With Quote
  #7 (permalink)  
Old 07-September-2005, 10:08 AM
spfrss's Avatar
spfrss spfrss is offline
Member
 
Join Date: Apr 2003
Location: Italy
Posts: 36
Default GMT info

Quote:
Originally Posted by Hale_Bopp
I believe the 10 times Hubble's resolution assumes the GMT will be using a pretty good adaptive optics system to remove the blurring of the atmosphere.

Rob

plenty of infos about GMT progress at

http://www.gmto.org


live long and prosper

Mauro
Reply With Quote
  #8 (permalink)  
Old 07-September-2005, 10:12 AM
spfrss's Avatar
spfrss spfrss is offline
Member
 
Join Date: Apr 2003
Location: Italy
Posts: 36
Talking More on GMT

just to give an idea of this baby's dimensions...

Muro
Attached Images
File Type: jpg circles_from_stairs1.jpg (90.4 KB, 25 views)
Reply With Quote
  #9 (permalink)  
Old 09-September-2005, 11:39 AM
johninf johninf is offline
Junior Member
 
Join Date: Apr 2005
Posts: 20
Default

Quote:
Originally Posted by Padawan
Link

Now that is a telescope I wouldnt mind having in my backyard Making it fit is another thing though :-k.
Seriously though, I hope I'll be alive to see the pictures it takes when it's complete.
Is it possible to construct a mirror using broken mirror pieces like a crazy paving
inside the concave shape. And if it is would it work.? :- )
Reply With Quote
  #10 (permalink)  
Old 09-September-2005, 04:43 PM
antoniseb's Avatar
antoniseb antoniseb is offline
Moderator
 
Join Date: Jul 2005
Location: Irvine CA
Posts: 14,848
Default

Quote:
Originally Posted by johninf
Is it possible to construct a mirror using broken mirror pieces like a crazy paving inside the concave shape. And if it is would it work.? :- )
Well, yes it is possible, but it would be difficult to align them all for astronomy work. You could easily, for example, build something like that as a solar concentrator, for cooking things, or (if big enough) melting metals. BTW, it would take a lot of broken mirror parts to cover a 25 meter diameter dish.
__________________
Forming opinions as we speak
Reply With Quote
  #11 (permalink)  
Old 09-September-2005, 04:50 PM
ToSeek's Avatar
ToSeek ToSeek is offline
Vulcan Moderator
 
Join Date: Oct 2001
Location: Greenbelt, MD
Posts: 24,215
Default

The Keck Telescope mirrors are actually 36 separate segments.
__________________
Everything I need to know I learned through Googling.
Reply With Quote
  #12 (permalink)  
Old 02-February-2006, 02:35 AM
mikeh9741 mikeh9741 is offline
Junior Member
 
Join Date: Sep 2003
Location: Manchester, NH
Posts: 24
Default Aritcle re: Giant Magellan Telescope on discover.com

There's an interesting article about the Giant Magellan Telescope (GMT) on discover.com and in the February issue of Discover magazine. When I first read it, I was surprised that it said that the GMT may be the first telescope to directly image an extrasolar "planet" (haha). This was surprising to me because of the two noteworthy claims that this has already been done and because the GMT is supposed to be completed in 2016. However, if the claims are not accepted and no other telescope performs the feat before GMT, I suppose it's possible. Anyway, it seems that the GMT will be a great telescope if it can be made to work.
Reply With Quote
  #13 (permalink)  
Old 05-February-2006, 01:09 AM
TheOrqwithVagrant TheOrqwithVagrant is offline
Junior Member
 
Join Date: Sep 2005
Posts: 11
Default

The timeplan for OWL has it at being operational with a 70m mirror by 2016, and the full planned 100m by 2021. I guess the difference is that work on the GMT has already started, whereas OWL is still pretty much only on the drawing board. Still, if work on the OWL would barge ahead, the GMT will be upstaged rather badly on completion, I think. Not that there can ever be too many giant telescopes in the world, of course...

Does anyone have a list of big 'scopes in the work, with completion dates?
Reply With Quote
  #14 (permalink)  
Old 12-February-2006, 10:55 PM
Launch window's Avatar
Launch window Launch window is offline
Senior Member
 
Join Date: Jul 2004
Posts: 1,898
Default

Quote:
Originally Posted by TheOrqwithVagrant
The timeplan for OWL has it at being operational with a 70m mirror by 2016, and the full planned 100m by 2021. I guess the difference is that work on the GMT has already started, whereas OWL is still pretty much only on the drawing board. Still, if work on the OWL would barge ahead, the GMT will be upstaged rather badly on completion, I think. Not that there can ever be too many giant telescopes in the world, of course...

Does anyone have a list of big 'scopes in the work, with completion dates?
also discussed here
Extremely Large Telescope Takes the Next Step
on the ground there a load of ideas for big scopes like Euro50, for space they have plans like Terrestrial Planet Finder
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT. The time now is 10:11 AM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.0.0
©  2006 Bad Astronomy and Universe Today