Astronomers observe galaxies and categorize them according to four different kinds of shapes: elliptical, spiral, barred-spiral, and irregular in addition to shape, each of the four different galaxy types can be described by other common characteristics. A slightly more extensive description of galaxy types based on their appearance is given by the irregular galaxies often exhibit spaced knots of . Irregular galaxies ugc 1597, an irregular galaxy from the sdss most galaxies fit one of the three previously described types, but about 3% of the galaxies we observe are very different. Irregular galaxy see galaxies hubble classification irregular galaxy [i′reg ə ər ′gal k ē] (astronomy) a galaxy which shows no definite order or shape, except that of a general flattened appearance. Types and classification of galaxies there are three main types of galaxies: elliptical, spiral, and irregular two of these three types are further divided and classified into a system that is now known the tuning fork diagram.
Elliptical galaxy facts & definition m87, identified as one of the largest galaxies in the universe, is classified as an elliptical galaxy — e0, to be exact scientists recently announced . Definition of irregular galaxy: a small galaxy, such as either of the magellanic clouds, showing no symmetry and containing little dust or gas see panel on galaxy,. Definition of milky way 1 : a broad luminous irregular band of light that stretches completely around the celestial sphere and is caused by the light of myriads of faint stars 2 : milky way galaxy.
What is a galaxy we live on a planet called earth that is part of our solar system a galaxy is a huge collection of gas, they have irregular . Irregular galaxies are a distinct type of galaxy that is still not very well understood astronomers are studying their origins and evolution. Irregular galaxies are as their name suggests: irregular in shape the best example of an irregular that can be seen from earth is the small magellanic cloud irregulars usually do not have enough structure to characterise them as spirals or ellipticals. A galaxy that does not have the clearly defined shape and structure of an elliptical, lenticular, or spiral galaxy irregular galaxies typically contain large amounts of gas and dust, and their stellar populations are relatively young . A galaxy is a huge collection of gas, dust, and stars held together by gravity most galaxies contain at least a trillion stars there are trillions of galaxies in the universe galaxies are grouped according to shape type the three galaxy types are elliptical, spiral and irregular the idea of a .
Irregular galaxy most galaxies can be categorized by their shape our own milky way is a spiral galaxy, for example, and the largest galaxies in the universe are elliptical galaxies . Any galaxy that doesn't fit into one of the other galaxy groups is called an irregular galaxy of all the galaxies seen by astronomers, who are scientists that study objects in space, the . An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy irregular galaxies do not fall into any of the regular classes of the hubble sequence, and they are often chaotic in appearance, with neither a nuclear bulge nor any trace of spiral arm structure.
Irregular galaxies, such as m82 (right), have a wide variety of shapes and characteristics they are frequently the result of collisions between galaxies or gravitational interactions between galaxies. An irregular galaxy is a galaxy that does not have a distinct regular shape, like a spiral or an elliptical galaxy irregular galaxies do not fall into any of the regular types of the hubble sequence. Chapter 16 stars & galaxies 5th grade science chapter 16 stars and galaxies study play galaxy irregular galaxy huge galaxy with no regular shape star huge . An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxythe shape of an irregular galaxy is uncommon – they do not fall into any of the regular classes of the hubble sequence, and they are often chaotic in appearance, with neither a nuclear bulge nor any trace of spiral arm structure.
The galaxy is classified as a dwarf irregular galaxy and is much smaller than our milky way the two major starburst regions are the concentrated bluish-white knots embedded in the heart of the galaxy. Freebase (500 / 1 vote) rate this definition: irregular galaxy an irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. Description 22 aug: ask anything wednesday - physics, astronomy, earth and planetary science what's the difference between an irregular galaxy and a peculiar .