white nebula

English

Etymology

white + nebula

Noun

white nebula (plural white nebulae)

1. (astronomy, obsolete) a nebula that appears white in colouration through a high-powered telescope (nebulae often appear to have some hint of colour through a powerful telescope, but white when not using a powerful instrument); these nebulae were generally to be determined to be galaxies in the 20th century

Coordinate terms

• spiral nebula
• great nebula