What potential classification error can occur when observing a spiral galaxy edge-on?

Answer

It can be mistaken for a featureless lens shape or even an elliptical galaxy

When a spiral galaxy is viewed edge-on, its defining spiral arms become invisible, meaning the structure might be mistaken for a lens shape or incorrectly classified as an elliptical galaxy.

What potential classification error can occur when observing a spiral galaxy edge-on?

#Videos

We Can't Explain Spiral Galaxies - The Winding Problem - YouTube

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