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RCW 58

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description RCW 58 Overview

RCW 58 is a Wolf-Rayet nebula around WR 40, notable for a dusty ring-like structure modeled in 2021 as about 2.5 solar masses of gas.

help RCW 58 FAQ

What is RCW 58?

RCW 58 is a nebula surrounding the Wolf-Rayet star WR 40. It is notable for its dusty, ring-like structure.

What kind of star is inside RCW 58?

The nebula surrounds WR 40, a Wolf-Rayet star. Wolf-Rayet stars are hot, evolved massive stars with powerful stellar winds that can shape surrounding gas and dust.

How much material is in the ring around RCW 58?

A 2021 model estimated about 2.5 solar masses of gas in the dusty ring-like structure. That figure is a model result, not a direct weighing of the nebula.

Why is RCW 58 scientifically interesting?

Its ring-like dust and gas provide a case for studying how strong winds from a Wolf-Rayet star reshape circumstellar material. The nebula also helps researchers examine the late evolution of massive stars.

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