Keck 1 & 2 By: Sean Coyne

Construction and Operation:

Where? - Located on top of Mauna kea mountain in Hawaii (13,802 ft)

How much $? - Total cost of both telescopes was 192 million.

Who paid? - William M. Keck foundation

When? - Idea was developed in 1977, but no donation was made until 1985. Once the telescope was funded building could begin.

How long did it take to build? - Keck 1 was built from 1985 - 1993 and the Keck 2 was built from 1991 - 1996

Who operates it? - Managed by the University of California, California Institute of Technology and NASA

Used Keck telescope to find the first evidence of organic molecules in a planetary disk
Keck using laser guided star

Physical Characteristics:

What are the mirror dimensions? What are the mirrors made of? - The mirrors on the Keck telescopes are made up of 36 aluminum coated glass mirror segments that come together in order to form 1 mirror. Each segment is 6 feet long, and when pieced together are roughly the size of a tennis court (400 inches!)

Weight? - 270 tons

Diagram of Keck's mirror

Optical Characteristics:

What region(s) of the EM spectrum does it observe? - Largest optical and inferred telescope.

What wavelengths/frequencies? - optical, near-infared

What is its resolution (this is likely to be a range)? - for the individual the resolution range is between .04 - .4 arc seconds.

Research and Purpose:

What kind of objects does the telescope study? - Very powerful optical and inferred telescope. Used to look at the cosmos, and discover new planets and stars.

Keck telescopes using a laser guided star to shot laser into the milky way in order to clear atmospheric blurring, working together for double the resolution.

What sets this telescope apart from the others? - Because these two twin telescopes are built side by side, they have the unique ability to come together and in a sense become the same telescope increasing the Keck's power by 2.

Primary mirror on the Keck 2 telescope.

Inside look at the kecks 10m mirrior
Cool moonlit picture of Keck telescopes on the summit.



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