Reply to post: Re: Missing the point

Astroboffins may have raged at Elon's emissions staining the sky, but all those satellites will be more boon than bother

Flocke Kroes Silver badge

Re: Missing the point

To make an array you need mix the light from all the telescopes while arranging for the optical path length to be the same to sub-micrometer precision no matter which telescope the light enters. Perhaps this could work with a radio telescope because the wave length is far bigger but no chance with optical.

By the way, years ago I came across a book called something like "Astronomical events photographed in the UK" that had some beautiful photographs of clouds and rain. Anyone know what the actual title is so I can find it again?

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