Explanation: What's a Wolf-Rayet star, and how did it create that spherical bubble and sweeping arc? A Wolf-Rayet star is a star that originated with a mass over 40 times that of our Sun. An extremely hot, luminous star, it has since expelled shells of material through its strong stellar wind which could account for the bubble shaped nebula that surrounds it. But astronomers are unsure how the central Wolf-Rayet created both the bubble and the arc seen above, and even whether it acted alone in doing so. Together, this bubble and the arc are known as NGC 2359.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: zvezdnyi veter - tumannost' Publikacii so slovami: zvezdnyi veter - tumannost'
Sm. takzhe: LDN 1471: polost', vydutaya zvezdnym vetrom Sharpless 308: tumannost' Golova Del'fina Kol'cevaya tumannost' vokrug WR 134 Zvezdy, pyl' i tumannost' v NGC 6559 Kol'cevaya tumannost' WR 134 Sharpless 2-308: tumannost' Del'fin Zvezda Vol'fa-Raie WR 124 Vse publikacii na tu zhe temu >>