How does the evolutionary rate of the Stingray Nebula compare to older nebulae like the Ring Nebula?

Answer

It is changing quickly

The Stingray Nebula undergoes rapid evolution, changing significantly over short observation periods, unlike older, more established nebulae whose structure remains relatively constant for centuries.

How does the evolutionary rate of the Stingray Nebula compare to older nebulae like the Ring Nebula?
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