Last Updated
：2025/11/19
planet
IPA(Pronunciation)
Noun
historical
Japanese Meaning
古代の天文学や占星術において、固定星に対して動く主要な天体、すなわち月、水星、金星、太陽、火星、木星、土星（七惑星）を指す意味。
Sense（1）
Sense（2）
(astronomy)
A
body
which
is
massive
enough
to
be
in
hydrostatic
equilibrium
(generally
resulting
in
being
an
ellipsoid)
but
not
enough
to
attain
nuclear
fusion
and,
in
IAU
usage,
which
directly
orbits
a
star
(or
star
cluster)
and
dominates
the
region
of
its
orbit;
specifically,
in
the
case
of
the
Solar
system,
the
eight
major
bodies
of
Mercury,
Venus,
Earth,
Mars,
Jupiter,
Saturn,
Uranus,
and
Neptune.
（ plural ）
Quizzes for review
(now historical or astrology) Each of the seven major bodies which move relative to the fixed stars in the night sky—the Moon, Mercury, Venus, the Sun, Mars, Jupiter and Saturn.
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See correct answer
planet
The ancient astrologer charted each planet's influence on the seven-day week.
See correct answer
The ancient astrologer charted each planet's influence on the seven-day week.
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