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	Calculating the length of a Lightyear (Benjamin Merritt) View
	Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting (TED-Ed) View
	Understanding Astronomical Unit and Light Year \| Units to measure very large distances. (The Practical School) View
	What Is a Light Year (The Organic Chemistry Tutor) View
	Astronomical Unit (AU) and Light Year (ly)- lengths used to measure great distances in Astronomy (Smithonomy) View
	Let's Measure 1 LIGHT YEAR to scale (VEGA ASTRO ⭐⭐) View
	What Is a Light Year (Conceptual Academy) View
	Distances: Crash Course Astronomy #25 (CrashCourse) View
	How Do We Measure Distance In The Universe (Fraser Cain) View
	How many miles in a lightyear (Benjamin Merritt) View