GK
THE UNIVERSE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What are the three major types of galaxies identified by Edwin Hubble?
|
|
spiral, triangular, irregular
|
|
|
spiral, elliptical, irregular
|
|
|
spiral, triangular, elliptical
|
|
|
triangular, elliptical, irregular
|
Explanation:
Detailed explanation-1: -Astronomers classify galaxies into three major categories: elliptical, spiral and irregular. These galaxies span a wide range of sizes, from dwarf galaxies containing as few as 100 million stars to giant galaxies with more than a trillion stars.
Detailed explanation-2: -How are elliptical, irregular, and spiral galaxies different? Elliptical galaxies are shaped like spheres or cucumbers and contain old stars. Spiral galaxies have a central disk surrounded by spiraling arms and possess new stars. Irregular galaxies have no distinct shape and have both old and new stars.
There is 1 question to complete.