Die 100 am häufigsten verwendeten Wörter in diesem Buch.
absorption
angle
atmosphere
atom
background
between
black
called
case
cloud
cm
curve
density
different
distance
dust
earth
electron
emission
energy
eq
equation
example
field
figure
flux
frequency
function
galaxy
gas
given
high
higher
however
hydrogen
image
important
intensity
ionized
light
line
low
mass
matter
may
mean
must
number
object
observed
occur
optical
optically
particles
per
photon
planet
point
possible
process
radiation
radio
ref
region
result
scattering
sect
see
seen
shown
shows
signal
since
size
sky
solar
source
space
specific
spectral
spectrum
stars
state
stellar
sun
surface
table
telescope
temperature
therefore
thus
time
total
transition
two
units
used
value
velocity
wavelength
