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Aluminium mirror..possible???
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09-06-2019, 05:23 PM
skysurfer
Dark sky rules !
Join Date: Dec 2011
Location: 52N 6E (EU)
Posts: 1,152
The segments of the
JWST
are made of beryllium which is a metal like aluminum, but is floating 1.5 million km 'behind' Earth as seen from the Sun, it is the largest telescope in space to date. To enhance reflectivity, the mirror is gold coated.
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