Irregular galaxies are thought to represent about 25% of all the galaxies.
That puts the total at around 25 billion - depending on the source for the total amount (100 -> 300 billion)
Irregular galaxies have no discernible shape.
Irregular ones!
Spiral galaxies, barred spiral galaxies, elliptical galaxies, and irregular galaxies
They are ALL galaxies.
Irregular galaxies are believed to have been spiral or elliptical galaxies in the past, which have been distored through gravitational pull of neighboring galaxies.
spiral galaxies (ours), irregular galaxies, and elliptical galaxies.
irregular galaxies
Yes, irregular galaxies are all shapeless. None of them have a distinct shape.
Elliptical galaxies are typically larger than irregular galaxies. Elliptical galaxies are shaped like ellipsoids and often contain more stars and stellar mass compared to irregular galaxies, which have a more irregular and chaotic shape and structure.
Spiral,elliptical,and irregular galaxies
There are at least 5 billion irregular galaxies in the universe.
Collisions or interactions between galaxies are believed to be the cosmic accidents that can lead to the formation of many irregularly shaped galaxies. These interactions can trigger bursts of star formation and distort the shape of galaxies, resulting in the formation of irregular shapes.