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Disorder in Stephan's Quintet
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Disorder in Stephan's Quintet
Credit & Copyright: W. C. Keel and R. E. White III (U. Alabama, Tuscaloosa), Kitt Peak 2.1-meter Telescope
Explanation: What are five closely grouped galaxies doing in this image? The grouping is commonly known as Stephan's Quintet. Four of the galaxies show essentially the same redshift suggesting that they are at the same distance from us. The large bluish spiral below and left of center actually has a smaller redshift than the others, indicating it is much closer. It is probably a foreground object which happens to lie along the line of sight to the more distant galaxies. Of the four distant galaxies, three seem to be colliding, showing serious distortions due to gravitational tidal forces. The fourth is a normal appearing elliptical galaxy (at the lower right edge of the field). Recent results suggest that collisions play an important role in the life cycles of galaxies.

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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: colliding galaxies - Stephan's Quintet - vzaimodeistvuyushie galaktiki - evolyuciya galaktik
Publikacii so slovami: colliding galaxies - Stephan's Quintet - vzaimodeistvuyushie galaktiki - evolyuciya galaktik
Sm. takzhe:
Vse publikacii na tu zhe temu >>

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