Glossary - Astronomy Magazine

Comet C/2011 L4 (PANSTARRS)

Comet C/2012 S1 (ISON)

Glossary

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waning the period between Full Moon and New Moon
wavelength the distance between two successive wave crests or troughs
waxing the period between New Moon and Full Moon
weight the force exerted on an object due to gravity
white dwarf the dense, collapsed, Earth-sized remnant of an intermediate-mass star like the Sun
winter a season that begins around December 21 in the Northern Hemisphere

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