irregular galaxy

In early observations, the burst appeared to have originated near an unidentifiable, amorphous blob, which astronomers initially thought was either a single, irregular galaxy or a group of three distant galaxies.

But NGC 6822 is an example of an irregular galaxy.

But the light signature revealed that the object was indeed located in a small, irregular galaxy about 500 million light-years from Earth.

At the edge of the small, irregular galaxy that he was studying in the constellation Centaurus, he saw a large burst of light brighter than the entire galaxy itself that had not been there before.