Wow! A 1.8m reflector?

Started by rushby.craig, 11/16/2012 01:39PM

Posted 11/16/2012 01:39PM Opening Post

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Join Date: Apr 2003

Location: Centerville UT, US

Posts: 28

Saw this on the local news last night. I don't know if Mike is a member here. http://www.ksl.com/?sid=22987812&nid=148&title=steel-beams-and-a-giant-mirror-how-a-utahn-is-creating-a-galactic-first&s_cid=featured-2

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Rushby Craig
Centerville, UT
8" f6 reflector
Takahashi FS-128 Fluorite Apochromatic Refractor
EQ6 Synscan GEM

Posted 11/19/2012 12:37AM #1

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Join Date: Mar 2005

Location: Tucson AZ, US

Posts: 457

Probably ~ 9m focal length, so the lowest useful power is ~ 150X with a FOV of not quite as large as the full moon. Perfect though for the tiny faint fuzzies and planetary nebulae.

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Jim McSheehy

Posted 11/27/2012 02:44AM #2

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Join Date: Aug 2002

Location: North Myrtle Beach SC, US

Posts: 124

Love that story. Thanks for posting. Martin

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"In the beginner's mind there are many possibilities, but in the expert's there are few." Shunryu Suzuki[COLOR="Blue"][/COLOR]

Posted 11/27/2012 02:19PM #3

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Join Date: Dec 2002

Location: Plymouth MN, US

Posts: 104

Quote from the article:

Although the mirror has been ground and polished, it still needs its reflective coating. Clements, with Dodds' help, plans to do this with a special metallic liquid and an automotive spray gun.

What?? Has anyone heard of spray-painting a mirror?

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