a star is born when
a light year is
a light year is used to measure
a meteoroid is a
asteriods revolve sround the sun in
asteriouds are found? what is it called?
big bang
black hole
characteristics of inner planets
characteristics of outer planets
characterists used to identify staars
comets are made of
constillation
craters
earth is unique because
earths 2 motions through space?
equinox
features of the moon
four inner planets
four outer planets
heliocentric system
highlands
how long a star lives depends on
how long does it take earth to complete one revolution around th
how long does it take earth to rotate once on its axis
hr diagrams are used to
inertia
jupiter is
large groups of stars are
maria
mars is nicknamed? because?
mass
mercury is
most comets are found in
neap tide
nebula
neutron star
newtons 1st law of motion
newtons law of universal gravitation
nickname for inner planets
nickname for outer planets
nuclear fushion
observatory
open clusters characteristics are
orbital velocity
orbits of comets are
our system is in ? what type is it?
parallax
penumbra
phases
prostar
quasar
radio telescope
remote sensing
revolution
rocket
rotation
saturns rings are made of
small mass stars
solar systems
space probe
space spinoff
space station
spectrograph
spiral galaxy
spring tide
sun sinterior consits of
suns atmosphere includes
super nova
the brightness of a star depends on
the hemisphere titlted toward the sun had what
the moon was formed by
the phase of the moon depends on
three galaxies
thrust
tides
tides are caused by
umbra
universe
uranus' axis of rotation is
vaccum
velocity
weight
what angle is the earth tilted at
what are the 2 types of eclipses
what do the changing relative positions of the moon the sun and
what does earth rotation cause
what is the name of when the sun reaches the farthest position n
what season is it in the northern hemisphere when the north end
what two factors does the strenght of the force of gravity depen
when a meteriod enters earths atmosphere what does it create and
when a meteroid hits earths surface it is called
when a star runs out of fuel it becomes
when does a lunar eclipse occur
when does a solar eclipse occur
when does an eclipse occur
why does earth have seasons
you see a total lunar eclipse when