Explanation: Massive stars can blow bubbles. The featured image shows perhaps the most famous of all star-bubbles, NGC 7635, also known simply as The Bubble Nebula. Although it looks delicate, the 7-light-year diameter bubble offers evidence of violent processes at work. Above and left of the Bubble's center is a hot, O-type star, several hundred thousand times more luminous and some 45-times more massive than the Sun. A fierce stellar wind and intense radiation from that star has blasted out the structure of glowing gas against denser material in a surrounding molecular cloud. The intriguing Bubble Nebula and associated cloud complex lie a mere 7,100 light-years away toward the boastful constellation Cassiopeia. This sharp, tantalizing view of the cosmic bubble is a reprocessed composite of previously acquired Hubble Space Telescope image data.

Birthday Surprise: What picture did APOD feature on your birthday? (post 1995)

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

Publikacii s klyuchevymi slovami: Bubble nebula - tumannost' Puzyr' - NGC 7635 Publikacii so slovami: Bubble nebula - tumannost' Puzyr' - NGC 7635
Sm. takzhe: NGC 7635: tumannost' Puzyr' Puzyr' i zvezdnoe skoplenie NGC 7635: rasshiryayushayasya tumannost' Puzyr' NGC 7635: puzyr' v kosmicheskom more Priblizhayas' k tumannosti Puzyr' Tumannost' Puzyr' krupnym planom Tumannost' Puzyr' Vse publikacii na tu zhe temu >>