Galaxy vs Circumgalactic - What's the difference?

galaxy | circumgalactic |

As a proper noun galaxy

is (astronomy|dated) the milky way galaxy, from when it was thought the universe (our universe) had only one galaxy.

As an adjective circumgalactic is

(astronomy) surrounding a galaxy.




  • * 1633 , John Donne, "Sapho to Phil├Žnis":
  • So may thy cheekes red outweare scarlet dye, / And their white, whitenesse of the Galaxie [...].
  • (galaxy) Any of the collections of many millions of stars, galactic dust, black holes, etc. existing as independent and coherent systems, of which there are billions in the known universe.
  • Synonyms

    * (astronomy) G (abbreviation)

    Derived terms

    * active galaxy * dwarf galaxy * elliptical galaxy * extragalactic * galactic * galaxy cluster / cluster of galaxies * galaxy filament / filament of galaxies * galaxy nucleus * galaxy sheet / sheet of galaxies * galaxy wall / wall of galaxies * irregular galaxy * lenticular galaxy * spiral galaxy * whirlpool galaxy




    (en adjective)
  • (astronomy) Surrounding a galaxy