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We routinely acquire spectra of many astronomical objects at the same time by: Question 10 options: using several telescopes at once, adding the signals from
We routinely acquire spectra of many astronomical objects at the same time by: Question 10 options: using several telescopes at once, adding the signals from each one in an interferometric study choosing to study objects that happen to be closely side-by-side in space feeding the light from many separate objects into a prism through the use of fibre optics pointing the telescope at several targets at once, utilizing the fact that a reflecting telescope has several different focal positions
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