What visual feature often indicates the presence of a reflection nebula, distinguishing it from the other two types?

Answer

It often presents a distinct bluish hue due to light scattering

Reflection nebulae scatter light from nearby stars; because fine dust scatters shorter (blue) wavelengths more effectively, these nebulae frequently present a distinct bluish hue.

What visual feature often indicates the presence of a reflection nebula, distinguishing it from the other two types?

#Videos

How Do Reflection, Emission, And Dark Nebulae Differ? - YouTube

How Do You Distinguish Emission, Reflection, And Dark Nebulae?

Spaceastronomynebulaastrophysics