galaxy classification articles - Page: 2

What is inside of the Andromeda Galaxy?

The Andromeda Galaxy, known formally as Messier 31 (M31), is our nearest major galactic neighbor, a massive spiral struc...

What is the order of classification of stars from hottest to coldest?

The way astronomers sort the billions of stars visible in the night sky relies fundamentally on one key physical propert...

What is the rotation curve of a galaxy?

This fundamental concept in astrophysics, the galaxy rotation curve, is essentially a graph mapping out how fast materia...

What type of galaxies have gas and dust in them?

The makeup of a galaxy—specifically, the presence or absence of the raw materials for new stars—is fundamentally tied to...

Is a spiral galaxy gas or dust?

A spiral galaxy is fundamentally a mixture of celestial components, not a simple choice between being only gas or only d...

Are most galaxies red or blue-shifted?

The shift in the light emanating from distant cosmic objects tells a profound story about the structure and motion of th...