Question

What is a baseline in astronomy?

Answer 1

In radio astronomy a baseline is the vector connecting two radio telescopes that is used in interferometry to determine the fringe rate of a source at the nominal “phase centre” of an observation.

Answer 2

There are several definitions of baseline in astronomy: In radio astronomy a baseline is the vector connecting two radio telescopes that is used in interferometry to determine the fringe rate of a source at the nominal “phase centre” of an observation.

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