Last Updated
：2025/12/04
red nugget galaxy
Noun
(galaxies)
A
type
of
passive,
massive
and
compact
elliptical
galaxy,
that
has
been
little
changed
over
many
billions
of
years,
having
little
internal
activity,
little
to
no
interaction
with
other
galaxies,
little
to
no
new
star
formation
in
billions
of
years.
The
galaxies
typically
are
many
times
more
massive,
and
many
times
smaller,
than
our
Milky
Way
Galaxy.
The
redness
grows
as
stars
age,
which
as
a
population,
become
redder
with
time.
Japanese Meaning
赤い塊銀河：活動がほとんど見られず、非常に大質量かつコンパクトな楕円銀河。数十億年にわたりほぼ変化せず、内部活動や他の銀河との相互作用、新たな星形成が極めて乏しい。典型的には、我々の天の川銀河よりもはるかに巨大で、物理的サイズははるかに小さい。星が老化することで銀河全体も赤みを帯びる現象が見られる。
Sense（1）
(galaxies)
A
type
of
passive,
massive
and
compact
elliptical
galaxy,
that
has
been
little
changed
over
many
billions
of
years,
having
little
internal
activity,
little
to
no
interaction
with
other
galaxies,
little
to
no
new
star
formation
in
billions
of
years.
The
galaxies
typically
are
many
times
more
massive,
and
many
times
smaller,
than
our
Milky
Way
Galaxy.
The
redness
grows
as
stars
age,
which
as
a
population,
become
redder
with
time.
（ plural ）
Quizzes for review
(galaxies) A type of passive, massive and compact elliptical galaxy, that has been little changed over many billions of years, having little internal activity, little to no interaction with other galaxies, little to no new star formation in billions of years. The galaxies typically are many times more massive, and many times smaller, than our Milky Way Galaxy. The redness grows as stars age, which as a population, become redder with time.
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See correct answer
red nugget galaxy
The astronomer presented images of a distant red nugget galaxy that has remained compact and inactive for billions of years.
See correct answer
The astronomer presented images of a distant red nugget galaxy that has remained compact and inactive for billions of years.
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