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Galaxies have different shapes because of what happens throughout their lives. Any galaxy, at one point or another, will encounter another or many galaxies. When encounters occur, gravity takes over. The larger of the two galaxies will consume the smaller one, this is called galactic cannibalism. The act of absorbing another galaxy will change the size of the galaxy it's shape and even the speed of its rotation. Our own galaxy, The Milky Way, is as large it is (100000-150000 Light years across.) because of galactic cannibalism. The Milky Way is as we speak consuming two other small galaxy. And in about 2 billion years, our nearest nieghbor, the Andromeda Galaxy, will collide with our galaxy. Both the Milky Way and Adromeda galaxy are spiral galaxies, but after they collide the resulting new galaxy will an elliptical galaxy, which looks like a bright white sphere.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThe main types of galaxies are Spiral galaxies, Elliptical galaxies, Lenticular galaxies, and Irregular galaxies.
- Spiral (and Barred-Spiral) galaxies are shaped like pinwheels, with arms that spiral outward. The barred spiral has an elongated bar shape across the middle. Examples of the spiral are our own Milky Way and Andromeda. A barred spiral is the Sculptor Galaxy.
- Elliptical galaxies look like flattened spheres rather than the thinner spiral form. They are observed to have comparatively little interstellar matter. An example is the Maffei 1 galaxy.
- Lenticular galaxies are flattened galaxies without an obvious spiral structure. An example is the Spindle Galaxy in Draco.
- Irregular galaxies do not have any of the common shapes, and may have been disrupted by various forces. These include Hoag's Galaxy (a ring), the Magellanic Clouds, and NGC 1427A (which is speeding toward the Fornax cluster).
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Wiki User
∙ 6y agoSpiral galaxies are shaped like large flattened disks that spin around a central super-massive nucleus.
Barred spiral galaxies are similar to standard spiral galaxies, except that the spiral arms emanate from a large central column, or bar, that straddles the galactic core.
Elliptical galaxies have no discernible central core, and they appear to be ellipsoid, or spherical, in overall shape.
Irregular galaxies appear in many chaotic shapes and have little to no overall internal structure.
Wiki User
∙ 15y agoThere are 35 galaxies in the so-called "Local Group" The three largest galaxies are the Milky Way (our own), and the Andromeda and Triangulum galaxies. However, most of the visible stars we see are part of the Milky Way and two nearby dwarf galaxies, the "Small Magellanic Cloud" and the "Large Magellenic Cloud". There are 10 other dwarf galaxies near the Milky Way.
Wiki User
∙ 14y agoA galaxy is 99.9% always flat and circular, you may find an odd shaped galaxy that has been affected by gravitational forces caused by a nearby Black Hole. Each Galaxy has 2 spikes of radiation that shoot out from the top and bottom from the middle of the galaxy, in the very centre of a galaxy is a black hole, the galaxy spins because of the extreme mass of gravitational force from within the black hole, if you look at the close resemblance between a black hole and a galaxy you will notice that a black hole is just a dead galaxy which has consumed itself.
I hope my answer has been of any use.
Wiki User
∙ 13y agoEvery galaxy is different, but there are three broad categories of galaxies; spiral, elliptical, and irregular. There are also intermediate forms between these, and other forms such as the "barred spiral" galaxy, which is an example of our own Milky Way.
Wiki User
∙ 11y agoActually there are usually 4. They are:-
-Spiral galaxy
including Barred spiral galaxy
-Irregular galaxy
-Elliptical galaxy
-Lenticular galaxy
But some classifications may indeed only have 3 types.
Wiki User
∙ 9y agobarred spiral, elliptical, and normal spiral
Spiral Galaxies are one
Wiki User
∙ 13y agoThere are four main types of galaxies which are Spiralgalaxies, Elliptical galaxies, Lenticular galaxies and Irregular galaxies
Wiki User
∙ 11y agoElliptical, Spiral, Lenticular, and Irregular.
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What different shapes do galaxies form?
The most widely recognized system for categorizing the general shapes that galaxies form is credited to Edwin Hubble. Although each galaxy has a unique shape, he found they could be categorized into several shapes with common features. There were the rather featureless ellipticals, and then the spiral galaxies including spirals with bars (central bar-shaped concentrations of stars like our own Milky Way); and the lenticulars which have a flat disk shape with a central bulge but no spiral arms, and also irregulars, with odd or more random shapes that fell outside these common ones. Other shape (morphology) classification systems refined or extended these basic shapes, the classification varying because of a different placement of emphasis upon specific features such as star types or densities, presence of rings, and so forth.
Edwin Hubble categorized galaxies according to their?
Shape, or morph. The spiral galaxies, elliptical galaxies, lenticular, barred spiral, and irregular galaxies all are different shapes or morphs of galaxies, and so they are classified differently.
In which direction are mostly all galaxies moving?
Actually, most galaxies are all moving away from all other galaxies, not just from ours. The exception is the Andromeda galaxy, with which the Milky Way is on a collision course.
Do objects in the universe go farther apart?
Yes. Edit: Groups of galaxies usually move apart from each other. On a smaller scale than that there is no general movement apart. For example the galaxies in our "Local Group" are not moving apart.
How time is affected between the galaxies as there is no mass there?
In fact, galaxies have an enormous mass.In fact, galaxies have an enormous mass.In fact, galaxies have an enormous mass.In fact, galaxies have an enormous mass.
What are the 4 main galaxy shapes?
There are various ways of categorising galaxies, often based on Edwin Hubble's work on the shapes galaxies. Classifications often give the four main types of galaxies as: Spiral (including barred spiral), Elliptical, Lenticular and Irregular.
Are all galaxies the same size?
All galaxies are different sizes and mainly four different shapes,spiral,barred spiral,elliptical and irregular
What shapes do irregular galaxies have?
Irregular galaxies have no discernible shape.
What shapes of galaxies do contain H II regions?
Spiral and irregular galaxies.
Do galaxies all have the same shape?
Galaxies may have any of four general shapes. Elliptical galaxies show little or no structure and vary in general shape from moderately flat and round or oval to spherical. Spiral galaxies have a small, bright central region, or nucleus, and arms that come out of the nucleus and wind around, trailing off like a giant pinwheel. In barred spiral galaxies, the arms extend sideways in a short straight line before turning off into the spiral shape. Both kinds of spiral systems are flat. Irregular galaxies are usually rather small and do not have a symmetrical shape.
Galaxies are classified by their shape what are they called?
There are three types of galaxies, all of which are the same, with the exception of their shapes. There are the Elliptical galaxies (football-shaped) the Spiral galaxies (like the Milky way; vortex-shaped) and Irregular galaxies (all shapes other than spiral and football shaped).
Do all 100 billion galaxies come in all shapes sizes and colors?
Yes. All 100 billion galaxies come in all shapes, sizes, and colors.
Will astronomers classify all the shapes of the 100 billion galaxies in the universe?
There's an impossible way to classify all the shapes of 100 billion galaxies in the universe.
Will astronomers classify all the shapes of 100 billion galaxies in the observable universe?
Someday astronomers may have classified all the shapes of 100 billion galaxies in the observable universe.
What holds stars together to form shapes of galaxies?
GRAVITY!
Do all 100 billion galaxies in the universe come in all shapes sizes and colors?
Yes. All ~100 billion galaxies in the universe come in all shapes, sizes, and colors.
All of the folling are shapes used to classify galaxies except?
Triangles
