After galaxies external to the Milky Way were found to exist, initial observations were made mostly using visible light.

Few external galaxies are visible from within this cluster of stars, but among those few, it has found none that it can positively identify.

One of its main uses is as a tool for determining distances to external galaxies.

Throughtout the entire sky was no trace of the familiar external galaxies, though it held sources of similar radiation.

It is the brightest of the external galaxies, and you can recognize it fairly well from almost anywhere a Heechee ship is likely to go.

Furthermore, no Milky Way star or external galaxy has been detected at this location, meaning any source is very faint.

None were brought in from the external galaxy at the time of the Withdrawal.

Tell me, do you remember the strange behavior of that star of the external galaxy, the one you call Fomalhaut?

His catalogue included not only clusters, both open and globular, but also nebulæ and external galaxies.

Any binoculars will give a superb view of this huge system, which is much the brightest of the really large external galaxies.