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2
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An optical instrument that produces a spectrum from a narrow beam of light and usually projects the spectrum onto a photographic plate or a digital detector.
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3
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A small, dim, hot star.
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4
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The magnitude of a star that we would observe if the star were placed 32.6 light years from Earth.
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5
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A massive explosion in which the entire outer portion of a star is blown off.
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6
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A narrow band of stars on the H-R diagram that runs diagonally from the upper left to the lower right.
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7
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Certain specific wavelengths within a spectrum characterized by lines.
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8
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A star so dense that only neutrons can exist in the core.
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9
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A star's total energy output per second; its power in joules per second.
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