Sign Up
Sign In
中文
English Fox - English Dictionary
Meaning of
astronomical unit
in English
astronomical unit
us
/əˈstrɑːnəʊ.mɪkəl ˈjuː.nɪt/
uk
/əˈstrɑːnəʊ.mɪkəl ˈjuː.nɪt/
#uncommon
Definitions
Noun
the
average
distance
from
Earth
to
Sun
;
used
in
solar
system
measurements
The
astronomical
unit
is
used
to
measure
the
vast
distances
between
planets
.
a
standard
unit
of
length
;
approximately
149
.
6
million
kilometers
Scientists
define
the
astronomical
unit
as
approximately
149
.
6
million
kilometers
.
