Nebulosity Quotes

An object may not only contain stars, but also nebulosity not composed of them. (William Herschel)
Nebulæ can be selected so that an insensible gradation shall take place from a coarse cluster like the Pleiades down to a milky nebulosity like that in Orion, every intermediate step being represented. This tends to confirm the hypothesis that all are composed of stars more or less remote. View quote
William Herschel