OUR GALAXY | TYPES OF GALAXY

                          OUR GALAXY

 

Galaxy is one of the mysterious and interesting thing of the Universe, which Scientists have not yet been able to know. A Galaxy is a large collection of dust, gas and STARS. The Galaxy is the gravitationally bounded system.Scientists classified the GALAXY according to it's property.
                                                 The 'MILKY WAY' is our Galaxy. Our Solar - System is a part of Our Galaxy and Earth, where we live is one of the planet of Our Solar - System.

TYPES OF GALAXY:

There are three major types of Galaxy:

1. Spiral galaxy
2. Elliptical Galaxy.
3. Irregular galaxy

1.SPIRAL GALAXY:-Spiral galaxy is one kind of GALAXY. These are the most common type in the Universe. Our Galaxy

MILKY- WAY is a Spiral - galaxy.


Spiral galaxies are divided in to subcategories :

..So Galaxy.
..Sa Galaxy.
..Sb Galaxy.
..Sc Galaxy.

2. ELLIPTICAL GALAXY:-  Hubble Telescope classified the Galaxies according to their ellipticity. Elliptical Galaxies are

roughly egg - shaped( ellipsoidal or ovoid). Messier 87 is an example of Elliptical Galaxy.

3. IRREGULAR GALAXY:- Irregular Galaxy doesn't have a perfect shape.They are divided in two groups IrrI and IrrII.

The best example of an Irregular Galaxy is the Small Magellanic Cloud.