What type of cluster is coma?
What type of cluster is coma?
The cluster is within a few degrees of the north galactic pole on the sky. Most of the galaxies that inhabit the central portion of the Coma Cluster are ellipticals….
| Coma Cluster | |
|---|---|
| Right ascension | 12h 59m 48.7s |
| Declination | +27° 58′ 50″ |
| Brightest member | NGC 4874 and NGC 4889 |
| Number of galaxies | > 1000 |
What is the Coma Cluster mystery?
Also known as Abell 1656, the Coma Cluster spans 20 million light-years and is filled with galaxies of all shapes and sizes, from giant ellipticals to dwarf galaxies. An old but beautiful name for this region of sky is the Realm of the Galaxies.
How many galaxies are in a Coma Cluster?
1000 galaxies
It is estimated that over 1000 galaxies are part of the Coma Cluster, making it very rich. Coma is nearly spherical and has a one-megaparsec diameter consisting mainly of elliptical and highly-flattened eliptical galaxies. These galaxies have been estimated to be approximately 15 billion years old.
Are we in the Coma Cluster?
Located 300 million light-years from Earth, it is in the center of the Great Wall and a part of the Coma Filament. The Coma Supercluster is the nearest massive cluster of galaxies to our own Virgo Supercluster….
| Coma Supercluster | |
|---|---|
| Major axis | 6 Mpc (20 Mly) |
| Minor axis | 6 Mpc (20 Mly) |
| Distance (co-moving) | 92 Mpc (300 Mly) |
How far is the Coma Cluster?
322.9 million light years
Coma Cluster/Distance to Earth
Is a star cluster a galaxy?
Star clusters and galaxies both contain stars bound together by gravity, but while the members of a star cluster are thought to form simultaneously from a collapsing ball of gas, galaxies have richer histories.
How far away is the Coma Cluster?
How big is the Coma Cluster?
10 million light years
Coma Cluster/Radius
What cluster is the Milky Way in?
Virgo Cluster
The Milky Way Galaxy belongs to the Local Group, which lies on the outskirts of the Virgo Cluster.
What are two main types of star clusters?
Star cluster, either of two general types of stellar assemblages held together by the mutual gravitational attraction of its members, which are physically related through common origin. The two types are open (formerly called galactic) clusters and globular clusters.
What’s the difference between a galaxy and a cluster?
What super cluster are we?
The Laniakea Supercluster is the supercluster that contains the Virgo Cluster, Local Group, and by extension on the latter, our galaxy; the Milky Way. It contains the Local Group with our galaxy, the Milky Way.
What makes up the mass of the Coma Cluster?
About 90% of the mass of the Coma cluster is believed to be in the form of dark matter . However, the distribution of dark matter throughout the cluster is poorly constrained.
Where can you see the Coma Star Cluster?
The constellation Coma Berenices lies between the constellations Leo the Lion and Boötes the Herdsman. This part of the sky is the site of a famous open star cluster known as the Coma star cluster, and also of the more distant galaxy cluster, visible through telescopes. Both the star cluster and the galaxy cluster need a dark sky to be seen.
How did Fritz Zwicky discover the Coma Cluster?
The Coma Cluster is one of the first places where observed gravitational anomalies were considered to be indicative of unobserved mass. In 1933 Fritz Zwicky showed that the galaxies of the Coma Cluster were moving too fast for the cluster to be bound together by the visible matter of its galaxies.
Are there any scientific evidence for dark matter?
Since then a host of experimental data from precise measurements of the cosmic microwave background, of gravitational lensing of galaxy clusters, and of the rotational speeds of stars and galaxies, provide strong, internally consistent, evidence for the existence of dark matter as a particle.
What type of cluster is coma? The cluster is within a few degrees of the north galactic pole on the sky. Most of the galaxies that inhabit the central portion of the Coma Cluster are ellipticals…. Coma Cluster Right ascension 12h 59m 48.7s Declination +27° 58′ 50″ Brightest member NGC 4874 and NGC 4889 Number…