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15 Cards in this Set

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Includes everything: all matter, space, time and energy.
UNIVERSE
Includes a star and some planets, asteroids and comets.
PLANETARY SYSTEM
Name of our galaxy.
MILKY WAY
Unit used to measure within a planetary system.
AU (ASTRONOMICAL UNIT)
A group of nearby galaxies.
GALAXY CLUSTER
Name of our supercluster.
LOCAL CLUSTER
Unit used to measure on a planet.
KILOMETERS
Several galaxy clusters and the voids in between.
SUPERCLUSTER
Closest star to Earth.
SUN
A grouping of several nearby stars.
STELLAR REGION
Name of our galaxy cluster.
LOCAL GROUP
Number of planets in the Solar System.
9
Unit to measure to distances beyond the solar system.
LIGHT YEAR
Name of our stellar region.
SOLAR NEIGHBORHOOD
Number of stars in our Solar System.
1