Question

Andromeda is?
(A) A galaxy closest to our galaxy
(B) A new version of Android OS
(C) It is another name of Milky Way
(D) Name of a star in our galaxy

Answer 1

Hint: Galaxy is the system that bounds stars, dust, gases and other interstellar particles by means of its gravitational force. Some of the galaxies that are known include the Milky Way, whirlpool galaxy, Triangulum galaxy, pinwheel galaxy, Andromeda galaxy etc.

Complete answer:
The original name of the Andromeda galaxy is Andromeda nebula and it is the spiral galaxy. The Earth is situated in the solar system of the Milky Way galaxy. The Andromeda galaxy was named after the Ethiopian princess. The Greek mythologist who found this galaxy, named this galaxy with his wife's name.

Andromeda is also known as Messier $31$ or $NGC\,224$. The Andromeda galaxy is believed to be more massive than the Milky Way galaxy. The count of stars present in this galaxy is as twice as that of the Milky Way galaxy. It is at a distance of $2.5\,million\,light\,years$ from the earth. It is the nearest major galaxy to the Milky Way galaxy that we live in.

Thus, the option (A) is correct.


Note:A study says that Andromeda and the Milky Way galaxy are expected to collide each other in around $4.5\,billion\,years$ and to become the same galaxy which is giant and larger in size. This Andromeda galaxy appears when excluding the clouds in the northern latitude. It appears as the dotted full moon.