Related articles:
Light-second
Julian year (astronomy)
Parsec
Speed of light
Star system
Astronomical unit
Triangulum Galaxy
Andromeda Galaxy
Length
Gliese 581
Large Magellanic Cloud
Proxima Centauri
Milky Way
Galactic Center
Globular cluster
3C 273
Kilometre
Orders of magnitude (length)
Quasar
Sun
Parallax
Galaxy
Sirius
Oort cloud
Observable universe
International System of Units
Earth
Key terms:
distances
light
year
measure
unit
used
speed of light
about
astronomical
defined
value
julian year
star
modern
orbit
parsec
astronomy
galaxy
iau
exactly
equal
length
comet
rok
tropical year
km
scale
sun
luz
trillion
bessel
product
derived
gregorian
month
days
light year
godina
distances between
astronomical unit
mean
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