Featured Research

from universities, journals, and other organizations

Giant Furnace Opens To Reveal 'Perfect' LSST Mirror Blank

Date:
September 6, 2008
Source:
Brookhaven National Laboratory
Summary:
The single-piece primary and tertiary mirror blank cast for the LSST is "perfect", say project astronomers and engineers. The LSST, or Large Synoptic Survey Telescope, a large survey telescope being built in northern Chile, requires three large mirrors to give crisp images over a record large field of view. The two largest of these mirrors are concentric and fit neatly onto a single mirror blank.

Members of the team building the LSST, a large survey telescope being built in Northern Chile, gather to celebrate the successful casting of the telescope's 27.5-foot-diameter mirror blank. The LSST requires three large mirrors to give crisp images over a record large field of view. The two largest of these mirrors are concentric and fit neatly onto the large mirror blank shown here. Seated on the mirror (L-R): LSST Director Tony Tyson, LSST System Scientist Zeljko Ivezic, LSST System Engineer Chuck Claver, LSST Project Manager Don Sweeney.
Credit: Howard Lester / LSST Corporation

The single-piece primary and tertiary mirror blank cast for the LSST is "perfect", say project astronomers and engineers.

Related Articles


The LSST, or Large Synoptic Survey Telescope, a large survey telescope being built in northern Chile, requires three large mirrors to give crisp images over a record large field of view. The two largest of these mirrors are concentric and fit neatly onto a single mirror blank. The single-piece primary and tertiary mirror blank emerged from the oven at the University of Arizona’s Steward Observatory Mirror Lab in Tucson, AZ, where team members gathered to celebrate this major milestone.

The Mirror Lab team opened the furnace for a close-up look at the cooled 51,900-pound mirror blank, which consists of an outer 27.5-foot diameter (8.4-meter) primary mirror and an inner 16.5-foot (5-meter) third mirror cast in one mold. It is the first time a combined primary and tertiary mirror has been produced on such a large scale.

In January 2008, LSST announced receipt of two major gifts: $20 million from the Charles Simonyi Fund for Arts and Sciences, and $10 million from Bill Gates. These gifts are being used to enable the construction of LSST's three large mirrors. The finished mirror is scheduled to be delivered in 2012.

The LSST will be the widest, fastest, deepest eye of the new digital age when it begins science operations from Cerro Pachσn, Chile, in 2015. It will provide time-lapse digital imaging across the entire available night sky every three days, mapping the structure of our dynamic universe and exploring the nature of dark matter and dark energy.

The LSST research and development effort is funded in part by the National Science Foundation under Scientific Program Order No. 9 (AST-0551161) and Scientific Program Order No. 1 (AST-0244680) through Cooperative Agreement AST-0132798. Additional funding comes from private donations, and in-kind support at Department of Energy laboratories and other LSSTC institutional members.

In 2003, the LSST Corporation was formed as a non-profit 501(c)3 Arizona corporation with headquarters in Tucson, AZ. Membership has since expanded to twenty five members including Brookhaven National Laboratory, California Institute of Technology, Carnegie Mellon University, Chile, Columbia University, Google Inc., Harvard-Smithsonian Center for Astrophysics, Johns Hopkins University, Kavli Institute for Particle Astrophysics and Cosmology - Stanford University, Las Cumbres Observatory Global Telescope Network, Inc., Lawrence Livermore National Laboratory, National Optical Astronomy Observatory, Princeton University, Purdue University, Research Corporation, Rutgers University, Stanford Linear Accelerator Center, The Pennsylvania State University, The University of Arizona, University of California at Davis, University of California at Irvine, University of Illinois at Urbana-Champaign, University of Pennsylvania, University of Pittsburgh, and the University of Washington.


Story Source:

The above story is based on materials provided by Brookhaven National Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

Brookhaven National Laboratory. "Giant Furnace Opens To Reveal 'Perfect' LSST Mirror Blank." ScienceDaily. ScienceDaily, 6 September 2008. <www.sciencedaily.com/releases/2008/09/080902214750.htm>.
Brookhaven National Laboratory. (2008, September 6). Giant Furnace Opens To Reveal 'Perfect' LSST Mirror Blank. ScienceDaily. Retrieved December 18, 2014 from www.sciencedaily.com/releases/2008/09/080902214750.htm
Brookhaven National Laboratory. "Giant Furnace Opens To Reveal 'Perfect' LSST Mirror Blank." ScienceDaily. www.sciencedaily.com/releases/2008/09/080902214750.htm (accessed December 18, 2014).

Share This


More From ScienceDaily



More Space & Time News

Thursday, December 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rover Finds More Clues About Possible Life On Mars

Rover Finds More Clues About Possible Life On Mars

Newsy (Dec. 17, 2014) — NASA's Curiosity rover detected methane on Mars and organic compounds on the surface, but it doesn't quite prove there was life ... yet. Video provided by Newsy
Powered by NewsLook.com
Evidence of Life on Mars? NASA Rover Finds Methane, Organic Chemicals

Evidence of Life on Mars? NASA Rover Finds Methane, Organic Chemicals

Reuters - US Online Video (Dec. 16, 2014) — NASA's Mars Curiosity rover finds methane in the Martian atmosphere and organic chemicals in the planet's soil, the latest hint that Mars was once suitable for microbial life. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Geminids Meteor Shower Lights Up Skies in China

Geminids Meteor Shower Lights Up Skies in China

AFP (Dec. 16, 2014) — The Geminids meteor shower lights up the skies over the Changbai Mountains in northeast China. Duration: 01:03 Video provided by AFP
Powered by NewsLook.com
Raw: Defense Satellite Launches from California

Raw: Defense Satellite Launches from California

AP (Dec. 13, 2014) — A U.S. defense satellite launched from California's central coast on Friday after weather delays caused by a major storm that drenched the state. (Dec. 13) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins