- a
spiral galaxy. It is
estimated that
there are
between 200
billion (2×1011) to 2
trillion galaxies in the
observable universe. Most
galaxies are 1,000...
-
following is a list of
notable galaxies.
There are
about 51
galaxies in the
Local Group (see list of
nearest galaxies for a
complete list), on the order...
- light-years (613 kpc). The
Milky Way has
several satellite galaxies and is part of the
Local Group of
galaxies,
which form part of the
Virgo Supercluster, which...
- A
galaxy cluster, or a
cluster of
galaxies, is a
structure that
consists of
anywhere from
hundreds to
thousands of
galaxies that are
bound together by...
-
Spiral galaxies form a
class of
galaxy originally described by
Edwin Hubble in his 1936 work The
Realm of the
Nebulae and, as such, form part of the Hubble...
- galaxies.
Elliptical (E)
galaxies are,
together with
lenticular galaxies (S0) with
their large-scale disks, and ES
galaxies with
their intermediate scale...
- that the
galaxies will
merge to form a
giant elliptical galaxy or
possibly large disc
galaxy. Such
events are
frequent among the
galaxies in
galaxy groups...
- The
Antennae Galaxies (also
known as NGC 4038/NGC 4039 or
Caldwell 60/Caldwell 61) are a pair of
interacting galaxies in the
constellation Corvus. They...
-
first galaxies, the way
galaxies change over time, and the
processes that have
generated the
variety of
structures observed in
nearby galaxies.
Galaxy formation...
- of
galaxies" 09/1984 Bibcode:1984A&A...138...85F THE
ASTRONOMICAL JOURNAL, 115:1745-1777, 1998 May; THE STAR
FORMATION PROPERTIES OF DISK
GALAXIES: Hα...