spiral galaxy


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spiral galaxy
Messier 81

spiral galaxy

n.
A galaxy consisting of a rotating flattened disk with a central bulge made up mostly of old stars, from which extend two or more spiral arms made up mostly of younger stars and large amounts of interstellar gas and dust.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

spiral galaxy

n
(Astronomy) a galaxy consisting of an ellipsoidal nucleus of old stars from opposite sides of which arms, containing younger stars, spiral outwards around the nucleus. In a barred spiral, the arms originate at the ends of a bar-shaped nucleus
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

spi′ral gal′axy


n.
a galaxy having a spiral structure. Compare elliptical galaxy.
[1910–15]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.spiral galaxy - a galaxy having a spiral structurespiral galaxy - a galaxy having a spiral structure; arms containing younger stars spiral out from old stars at the center
extragalactic nebula, galaxy - (astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust; "`extragalactic nebula' is a former name for `galaxy'"
Andromeda galaxy - a spiral galaxy in the constellation of Andromeda that is visible to the naked eye
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
kierteisgalaksi
galassia spirale
References in periodicals archive ?
NASA and the European Space Agency's Hubble Space Telescope was able to capture a stunning and detailed photo of a spiral galaxy located 70 million light-years from the Solar System.
"Few of the universe's residents are as iconic as the spiral galaxy," said the European Space Agency.
The Solar System is located in one of the arms in the disc of a barred spiral galaxy we call the Milky Way, with a diameter of about 100,000 light years.
Galaxies in Lion Territory Object Type Mag(v) Size NGC 2964 Spiral galaxy 11.3 2.9' x 1.6' NGC 2968 Irregular galaxy 11.7 1.9' x 1.3' NGC 2970 Elliptical galaxy 13.6 0.8' x 0.7' NGC 3003 Spiral galaxy 11.9 5.8' x 1.3' NGC 3021 Spiral galaxy 12.1 1.6' x 0.9' NGC 3067 Spiral galaxy 12.1 2.4' x 0.8' NGC 3245 Lenticular galaxy 10.8 2.9' x 1.1' NGC 3277 Spiral galaxy 11.7 1.9' x 1.7' NGC 3254 Spiral galaxy 11.7 4.5' x 1.2' O[SIGMA][SIGMA] 105 Double star 7.0, 8.2 134" NGC 3245A Barred spiral 13.9 3.6' x 0.3' NGC 3158 Elliptical galaxy 11.9 2.0' x 1.8' Object RA Dec.
Whether the spiral galaxy has two arms or four, whether those arms wrap all the way around the galaxy, and even the extent of the solar system's arm are up for debate.
This image made by the NASA/ESA Hubble Space Telescope shows the barred spiral galaxy NGC 1300.
Using the European Southern Observatory's MUSE instrument, the Durham University-led research team captured images of the spiral galaxy - known as ESO137--001 - which lies 200 million light years from Earth.
WASHINGTON (CyHAN)- NGC 4258, also known as Messier 106, is a spiral galaxy like the Milky Way.
Washington, June 4 ( ANI ): Researchers observed million seconds of observing time with NASA's Chandra X-ray Observatory and discovered a spiral galaxy similar to the Milky Way glittering with hundreds of X-ray points of light.
It was long thought to have four main bands of stars spinning from its center, but a new model shows that two of these arms dominate the spiral galaxy.
This image provided by NASA shows the sharpest shot yet taken of the large "grand design" spiral galaxy M81.