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	Astronomy - Ch. 17: The Nature of Stars (12 of 37) Brightness Explained (2 Ways) (Michel van Biezen) View
	Astronomy - Ch. 17: The Nature of Stars (11 of 37) Difference Between Luminosity and Brightness (Michel van Biezen) View
	Astronomy - Ch. 17: The Nature of Stars (14 of 37) Apparent Magnitude: Another Look (Michel van Biezen) View
	Astronomy - Ch. 17: The Nature of Stars (28 of 37) Determining a Star's Luminosity (Michel van Biezen) View
	Astronomy - Ch. 17: The Nature of Stars (29 of 37) Determining a Star's Luminosity: Example*** (Michel van Biezen) View
	Astronomy - Ch. 17: The Nature of Stars (15 of 37) Comparing Luminosity (Michel van Biezen) View
	Astronomy - Ch. 17: The Nature of Stars (27 of 37) Stellar Classification: Luminosity Class (Michel van Biezen) View
	Astronomy - Ch. 17: The Nature of Stars (2 of 37) This Video Has an Error (Michel van Biezen) View
	Astronomy - Ch. 17: The Nature of Stars (10 of 37) Relationship Between Intensity and Luminosity (Michel van Biezen) View
	Astronomy - Ch. 17: The Nature of Stars (33 of 37) Determining Stellar Radii (Luminosity of Sirius) (Michel van Biezen) View