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Spiral Galaxy M90
<< Yesterday 16.03.1996 Tomorrow >>
Spiral Galaxy M90
Credit & Copyright: Bill Keel (University of Alabama)
1.1-meter Hall Telescope, Lowell Observatory
Explanation: Spiral galaxy M90 is near the center of the Virgo Cluster of Galaxies - the closest cluster of galaxies to the our own Milky Way Galaxy. Also dubbed NGC 4569, this galaxy has a very compact and bright nucleus. Because of M90's proximity and motion inside the Virgo Cluster, M90 actually shows a blueshift - indicating that it is moving toward us rather than away. Most galaxies show a redshift which indicates that they move away from us. Calibrating exactly how redshift relates to distance would indicate a scale for our universe - a topic of much debate recently.

Information: The Scale of the Universe Debate in April 1996

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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: spiral galaxy - spiral'naya galaktika - krasnoe smeshenie
Publikacii so slovami: spiral galaxy - spiral'naya galaktika - krasnoe smeshenie
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