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How to Make Images with a Radio Telescope

-- Don | September 10, 2023

Question:

How do you get 2-dimensional pictures from a stationary point source at the focal point?
The antenna does not do TV-like scans – it is fixed. So how do you create the 2-D scans?
It must be some sort of electronic ‘scanning?’

-- Don

Answer:

I believe that this question has been answered before in our post answering the question How Does a Single Dish Telescope Make Images? If you are interested in how a collection of radio telescopes is combined to make an image, see the answer to the question How Does a Radio Interferometer Work?

-- Jeff Mangum

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