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A Look to the Heavens
Saturday, November 24, 2012 7:10
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“The
universe is filled with galaxies. But to see them astronomers must look
out beyond the stars of our galaxy, the Milky Way. For example,
consider this colorful telescopic view of spiral galaxy NGC 6384, about
80 million light-years away in the direction of the constellation
Ophiuchus. At that distance, NGC 6384 spans an estimated 150,000
light-years, but this close-up of the galaxy’s central region is about
70,000 light-years wide.
universe is filled with galaxies. But to see them astronomers must look
out beyond the stars of our galaxy, the Milky Way. For example,
consider this colorful telescopic view of spiral galaxy NGC 6384, about
80 million light-years away in the direction of the constellation
Ophiuchus. At that distance, NGC 6384 spans an estimated 150,000
light-years, but this close-up of the galaxy’s central region is about
70,000 light-years wide.
Click image for larger size.
The sharp image shows details in
the distant galaxy’s blue spiral arms and yellowish core. Still, the
individual stars seen in the picture are all in the close foreground,
well within our own galaxy. The brighter Milky Way stars show noticeable
crosses, or diffraction spikes, caused by the telescope itself.”
the distant galaxy’s blue spiral arms and yellowish core. Still, the
individual stars seen in the picture are all in the close foreground,
well within our own galaxy. The brighter Milky Way stars show noticeable
crosses, or diffraction spikes, caused by the telescope itself.”
- http://apod.nasa.gov/apod/ap110322.html
2012-11-24 07:00:21
Source: http://coyoteprime-runningcauseicantfly.blogspot.com/2012/11/a-look-to-heavens_23.html
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