Definition of Hubble classification in English:

Share this entry

Hubble classification

noun

Astronomy
A simple method of describing the shapes of galaxies, using subdivisions of each of four basic types (elliptical, spiral, barred spiral, and irregular). Hubble’s suggestion that they form an evolutionary sequence is no longer accepted.
Example sentences
  • Come the 1960s, an American astronomer named Halton C. Arp became the champion of galaxies that did not fit the simple Hubble classification scheme.
  • Our ultimate goal is to replace the Hubble classification method with a new Spitzer classification method.
  • Practice in using Hubble classification system as an example of how scientists classify objects in nature.

For editors and proofreaders

Line breaks: Hub¦ble clas¦si¦fi|ca¦tion

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.