DIY Instruments for Amateur Space by Sandy Antunes

DIY Instruments for Amateur Space by Sandy Antunes

Author:Sandy Antunes
Language: eng
Format: epub, mobi
Tags: SCIENCE / General
ISBN: 9781449310639
Publisher: Make
Published: 2013-03-27T16:00:00+00:00


Chapter 7. Resolution, By the Numbers

Assume an ideal detector. Ideal = perfect 100% fidelity; thus it only returns data intrinsic to source with no noise, has perfectly square pixels, and there are no optical defects, lens flare, etc. That is, it’s the sensor equivalent of physics frictionless vacuum.

Your target is a star with a possible exoplanet. Your detector receives 52 photons. We presume that’s what your detector of a given size captures for the entire exposure. What happens when we try to catch it with different imaging detectors? Remember, no matter how we slice it, we only get 52 photons.



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