Answer: magnitudes

AnswerCrossword Clue
MAGNITUDESSizes, as of stars.
magnitudesA numerical quantity or value
magnitudesGreat importance
magnitudesThe great size or extent of something
magnitudesThe degree of brightness of a star. The magnitude of an astronomical object is now reckoned as the negative logarithm of the brightness; a decrease of one magnitude represents an increase in brightness of 2.512 times. A star with an apparent magnitude of six is barely visible to the naked eye
magnitudesA difference of one on a scale of brightness, treated as a unit of measurement
magnitudesThe class into which a star falls by virtue of its brightness
magnitudesMAGNITUDE, size, extent
magnitudesSize