Composition 18 Flashcards
MOON PHASES
the different forms that the Moon takes in its appearance from Earth
phases depend on the relative positions of the Moon, Earth, and the Sun
MOON
closest celestial body to the Earth
moons orbit around Earth is elliptical
SOLAR SYSTEM
the collection of eight planets and their moons in orbit around the sun order nearest to the sun mercury venus earth mars jupiter saturn uranus neptune
EARTH’S ORBIT
its elliptical
has a closest point to the sun(perihelion)
and a farthest point(aphelion)
FULL MOON
lunar phase that occurs when the moon is completely illuminated as seen from Earth
moon is opposite side of the Earth from the Sun
NEW MOON
lunar phase when it looks like there is no moon at all
same side as the sun is
CRESCENT
phases where the moon is less than half illuminated
FIRST QUARTER MOON
90 degress away from the sun
THIRD QUARTER MOON
270 degrees around the sky from the sun
MILKY WAY
a concentration of the stars of our own galaxy, which are closer to Earth than the stars of other galaxies