The star system algol is a binary with a separation of 1010, Ask an Expert

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The star system algol is a binary with a separation of 10^10 m. The system is 5.1x10^17 m from the earth. what is the angular separation of the stars? What size telescope would be needed to resolve them using visible light( lamda= 500nm)? what if the 300nm light could be used?

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