[DOC] [TLE] Virgo Cluster - Wikipedia [PAR] The Virgo Cluster (VC) is a cluster of galaxies whose center is 53.8  0.3 Mly (
16.5  0.1 Mpc) ... The cluster is a fairly heterogeneous mixture of spirals and 
ellipticals. ... with some authors including a Virgo C subcluster, centered on the 
galaxy M60 as ... Of all of them, Virgo A, formed by a mixture of elliptical, 
lenticular, and... [DOC] [TLE] The Virgo Cluster [PAR] NGC 4293 (middle-left) is a spiral galaxy near the top of the Virgo cluster. ... 
Some of these galaxies may be foreground or background galaxies in the vicinity 
of... [DOC] [TLE] Clusters of Galaxies - Astronomy Notes [PAR] Apr 26, 2013 ... Some clusters have only a handful of galaxies and are called poor clusters. ... 
Each large spiral has several smaller galaxies orbiting them. ... The total mass of 
the Virgo cluster is large enough that its gravity pulls nearby .... The discovery of 
these huge structures was made recently from years of taking... [DOC] [TLE] What is the Virgo Cluster  Elliptical & Spiral Galaxies  PlanetFacts ... [PAR] Some are big while 90% of them are dwarf galaxies. These galaxies are attracted 
to each other by a common gravitational force. The Virgo cluster spans 15... [DOC] [TLE] Lecture 34: Clusters and Superclusters [PAR] Feb 26, 2003 ... And these have smaller still to bite 'em; ... Most galaxies are in gravitationally 
bound clusters of 10 to 10,000 galaxies ... Some of them are hidden behind the 
dust in our own galaxy, and are thus extraordinarily difficult to discover ... Within 
rich clusters, there are many elliptical galaxies, but few spiral galaxies... [DOC] [TLE] Stripped Spirals and Cosmic Cannibals - NASA History Homepage [PAR] Some galaxies evolve in isolation; others are found in clusters of galaxies, ... 
These harsh conditions play havoc with a galaxy, so much havoc, in fact, that if ... 
Cluster of galaxies in the constellation Virgo is typical of a large but irregular ... 
Why some of them became elliptical and some of them spiral is not well 
understood. [DOC] [TLE] Virgo cluster | galaxy cluster | Britannica.com [PAR] Of the galaxies in the Virgo cluster, 58 percent are spirals, 27 percent are 
ellipticals ... numerous, the four brightest galaxies are giant ellipticals, among 
them M87. Calibration of the absolute brightnesses of these giant ellipticals 
allows a leap to ... in astronomy, any of certain groupings of stars that were 
imaginedat least by... [DOC] [TLE] Clusters of Galaxies - G.O. Abell - NED - Caltech [PAR] The irregular Virgo cluster displays a wider range of galaxian types. ... The radial 
velocities of some of these spirals are known, and most lie within 2000 km s-1 ... 
the cluster galaxies, and the consequent removal of interstellar matter from them. [DOC] [TLE] Virgo Cluster - NED [PAR] The Virgo Cluster is the closest and best-studied great cluster of galaxies, lying ... 
1) cluster of galaxies with a high abundance of spiral galaxies among the bright 
... common class of galaxy clusters, which is characterized by these properties. [DOC] [TLE] Clusters of Galaxies - Teach Astronomy [PAR] Galaxy clusters contain hundreds to thousands of galaxies. ... Light from these 
galaxies began its journey to us long before humans evolved ... Poor clusters 
usually have irregular shapes and a number of subgroups and concentrations 
within them. The bright galaxies in Virgo are more or less equally divided into 
spirals and... [DOC] [TLE] Dwarf Spirals - University of Oregon [PAR] Virgo cluster, continued this line of argument and demonstrated that no spiral 
galaxies exist in the ... low to cause them to have been missed in previous 
surveys of the eld, but not so low that they ... of 8.6 km s1 , and some overlap at 
the band edges. .... evidence for a link between these dwarf spirals and their 
giant cousins. [DOC] [TLE] The Virgo Supercluster / The Milky Way [PAR] It is centered on the Virgo cluster and extends some 150 million ly across. ... We 
happen to live in an ordinary spiral galaxy called the Milky Way. ... These 
materials form the reservoir from which the Milky Way can draw on

Question: The Virgo cluster is a cluster of these, some of them spiral
Answer: galaxies