Not exact matches
Irregular dwarf
galaxies like Barnard's get their bloblike forms from close encounters with other
galaxies.
There are three main types of
galaxies: oval - shaped ellipticals, disk -
like spirals and
irregulars that don't quite fit in with either of the former classes.
In 1936 Hubble put these groups onto a two - pronged sequence that looks
like a tuning fork because he thought that the
galaxies started out as ellipticals, then changed to spirals and then to
irregulars.
«The beauty of this is that dwarf
irregulars are the most numerous type of
galaxy, and many,
like IC 10, are relatively nearby.
ESO 407 - 18 (left) is an
irregular dwarf
galaxy which
like NGC 55 is at the front of the Sculptor Group about 6 or 7 million light years from us.