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Q37: If a modern astronomer describes a faint
Q89: If you were standing on the South
Q100: If the stars Polaris and Arcturus are
Q172: Copernicus lived:<br>A) after Kepler but before Newton.<br>B)
Q218: Light enters a plane-parallel block of glass
Q232: The time taken for light to travel
Q236: For a particular observer in the northern
Q239: Jupiter will be at which configuration when
Q262: If a planet were to exist in
Q299: The bright stars Vega,Deneb,and Altair form:<br>A) the