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astronomy

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