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Star Cluster in the Rosette Nebula
<< Yesterday 22.05.1996 Tomorrow >>
Star Cluster in the Rosette Nebula
Credit & Copyright: P. Seitzer (U. Michigan), Curtis Schmidt Telescope, CTIO, Chile
Explanation: Embedded in the center of the colorful and photogenic Rosette Nebula is a bright, young open cluster. The bright blue stars in this cluster, labelled NGC 2244, emit ultraviolet light that knocks electrons away from hydrogen atoms. When the electrons fall back, they emit the red light which distinctively defines the glow of all emission nebulae. The Rosette Nebula is thousands of light years distant, but light would take only about 100 years to cross it. The Rosette Nebula is not difficult to observer and, although faint, actually appears larger than the full moon.

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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.

Russkii tekst
Based on Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: star cluster - Rosette Nebula - Tumannost' Rozetka - emissionnaya tumannost' - Rasseyannoe skoplenie
Publikacii so slovami: star cluster - Rosette Nebula - Tumannost' Rozetka - emissionnaya tumannost' - Rasseyannoe skoplenie
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