LUNAR ECLIPSE An eclipse of the moon occurs when the earth is in a direct line between the sun and the moon. The moon does not have any light of its own, instead, it reflects the sun's light.
lunar eclipse: when the earth is in a direct line between the sun and the moon. Because the moon reflects the sun's light and it cannot do this when the earth is in the way, it may appear dim or even orange in color.
See lunar eclipse or solar eclipse. ECLIPTIC The sun's apparent path across the sky that tracks a circle through the celestial sphere. ECOLOGY The study of the relationships between living organisms and their environment.
(frost point: see) dew point (dewpoint)
frostbite
Fujita scale (for measuring tornadoes)
fulgurite
(full lunar eclipse: see) lunar eclipse
full-spectrum light
funnel cloud (related to a tornado) ...
ECLIPSE The obscuring of one celestial body by another. Related terms: lunar eclipse and solar eclipse
ECLIPTIC The sun's apparent path across the sky that tracks a circle through the celestial sphere.
Eclipse The partial or total apparent darkening of the sun when the moon comes between the sun and the Earth (solar eclipse), or the darkening of the moon when the full moon is in the Earth's shadow (lunar eclipse).
 See also: Low pressure, Surface, Storm, Earth, Water
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