barred spiral galaxy
barred spiral galaxy
noun Astronomy.
a spiral galaxy whose center has the form of an extended bar.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
|
Link To barred spiral galaxy
American Heritage
Science Dictionary
barred spiral galaxy  (bärd) Pronunciation Key
A spiral galaxy with a barlike bulge in the center, extending between the core and the spiral arms. About a third of spiral galaxies have this straight bar of stars, gas, and dust extending out from the nucleus. As with other spiral galaxies, barred spiral galaxies rotate, and new stars form from the dust and gas in their arms. Astronomers believe that some elliptical galaxies containing hints of a bar and spiral might once have been barred spiral galaxies. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
00:10
Barred spiral galaxy
is always a great word to know.
So is gobo. Does it mean:
| a scrap or morsel of food left at a meal. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
Images for barred spiral galaxy
Nearby Words
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
