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The sky background power does not depend on _______(a) Effective entrance area to the telescope(b) Field of view of the telescope(c) Background radiance(d) Intensity of observing starI have been asked this question in an internship interview.Enquiry is from Stellar Sensor Design topic in section Celestial Navigation, Doppler and Altimeter Radars of Avionics

Answer»

The correct answer is (d) Intensity of observing star

Easiest explanation: The power from the sky BACKGROUND at the focal PLANE of a telescope depends on the background RADIANCE, the effective entrance AREA, and the FIELD of view of the telescope.



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