A glowing gaseous nebula whose light comes from the fluorescence of a nearby star is called a reflection nebula.

Here's why:

* Fluorescence: This means the nebula absorbs light from the nearby star and re-emits it at a different wavelength, making it glow.

* Reflection: The nebula isn't producing its own light, it's reflecting the starlight.

Examples of reflection nebulae include:

* The Pleiades (M45): This star cluster is surrounded by a faint blue reflection nebula.

* The Witch Head Nebula (IC 2118): This nebula is illuminated by the bright star Rigel.

Let me know if you'd like to learn more about reflection nebulae!