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astronomy

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Total: 220
12
observatory
12
kirkwood gaps
12
keplers laws
12
magnitude
11
constellation
11
orbit
11
docking
11
astronomical unit
11
inner planets
11
red shift
10
deneb
10
free fall
10
perturbation
10
spectrum
10
parsec
10
half moon
10
lens
10
gravitational constant
10
celestial
10
rings
10
telemetry
10
comet
10
waning
10
oort cloud
9
occultation
9
gegenschein
9
cislunar
9
corona
9
penumbra
9
planetary nebula
9
astronomer
9
hubbles law
9
cosmos
9
gravitational lens
9
mir
9
aphelion
9
dust
9
solar system
8
crater
8
space exploration
8
mass
8
terrestrial
8
perihelion
8
radiation
8
muttnik
8
inferior planets
8
interstellar
8
nebula
8
pulsar
8
hubble telescope
3