Examlex
Q5: In a binary star system, one component
Q23: For Balmer series lines to show up
Q33: A low-mass giant on the horizontal branch
Q72: A star of apparent magnitude +2.1 appears
Q79: What wavelengths have astronomers used to map
Q100: How many second-magnitude stars would be needed
Q111: A simple relationship exists between mass and
Q140: What is unique about a low-mass red
Q235: Which part of the Hertzsprung-Russell diagram is
Q249: The major source of energy in the