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Oort cloud
Meaning
Noun
●
In Astronomy:
A
roughly
spherical
region
of
space
composed
of comet-like
bodies
and other
minor planets
and
asteroids
that
orbit
distantly
in a
planetary
system.
Name
●
The Solar System's Oort
cloud
,
extending
from 50,000 to 100,000
astronomical units
(approximately 1
light year
) from the
sun
;
supposedly
the
source
of most
comets
around the Solar System.
●
Alternative form of Oort Cloud (the Solar System's Oort
cloud
)
Sourced from
Wiktionary
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