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astrosander edited Apr 16, 2025, 5:41 AM

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		+	### Statement
		+
		+	$13.4.20.$ [Insert the problem statement]
		+
		+	### Solution
		+
		+	### Problem
		+
		+	$13.4.20.$ Why are bright stars visible through a telescope even during the day?
		+
		+	### Solution
		+
		+	A telescope has a much larger aperture than the human pupil, so it collects significantly more photons from a star. Additionally, when looking through a telescope, we observe a narrow section of the sky, where less scattered light enters the eye. This reduces the background brightness and increases the contrast between the star and the sky.
		+
		+	#### Answer
		+
		+	The light flux from the star to the eye increases sharply.
		+
		+	#### Answer
		+
		+	[Insert a concise answer or boxed result]

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			### Statement

			$13.4.20.$ [Insert the problem statement]

			### Solution

			### Problem

			$13.4.20.$ Why are bright stars visible through a telescope even during the day?

			### Solution

			A telescope has a much larger aperture than the human pupil, so it collects significantly more photons from a star. Additionally, when looking through a telescope, we observe a narrow section of the sky, where less scattered light enters the eye. This reduces the background brightness and increases the contrast between the star and the sky.

			#### Answer

			The light flux from the star to the eye increases sharply.

			#### Answer

			[Insert a concise answer or boxed result]