What type of galaxy is the Milky Way? What galaxy is Polaris in? What is a galaxy eye? What is galactic astronomy? What kind of galaxy is Andromeda? What type of galaxy is Centaurus A? What galaxy is VY Canis Majoris in? What is Deneb? Is the milky way a quasar? Where is the ne...
the recently discovered ultra-faint dwarf spheroidal (dSph) galaxies which contain very few stars, has motivated us to as the question 'What is a galaxy?' Our aim here is to promote further discussion of how to define a galaxy and, in particular, what separates it from a star ...
A Galaxy is a large group of stars in the universe bound together by gravity either from their mass or a supermassive black hole.
the recently discovered ultra-faint dwarf spheroidal (dSph) galaxies which contain very few stars, has motivated us to as the question 'What is a galaxy?' Our aim here is to promote further discussion of how to define a galaxy and, in particular, what separates it from a star cluster. ...
A large cD galaxy can be 10 times brighter than the Milky Way, with about 100 times as much mass. They can have a diameter of 6 million light-years across (the Milky Way is about 100,000 light-years across). An example of this is the central galaxy in the cluster Abell 2029. ...
The most famous open cluster is the Pleiades, also known as M45 or the Seven Sisters. That last moniker, however, is something of a misdirection; the cluster has more than 1,000 stars, according to NASA, though only a handful of its brightest are visible to the naked eye. Other well-...
Abell's definition of a cluster is this: First, there have to be more than 50 galaxies within a specific amount of space. He said basically that clusters have a radius of roughly 2 megaparsecs. And it was just an assumption that all clusters would be about the same size. ...
A cluster computer is a group of multiple computers on a single LAN. Nodes in a cluster are designed to work together to process distributed workloads. Cluster computers are distinct from more integrated monolithic supercomputers. However, they can also be classed as supercomputers when sufficiently ...
For instance, our nearby neighbor the Andromeda galaxy has a globular cluster, Mayall II, orbiting it — and this cluster is twice the size of Omega Centauri! How will new tools, such as the Nancy Grace Roman Space Telescope, help advance our understanding of globular clusters? The Nancy ...
Our Milky Way is just an example of a galaxy, though. There is another type of galaxy called elliptical, and they’re even more common. The smallest galaxies in the Universe, the ultra-compact dwarf galaxies are only a little larger than a globular star cluster. But then the largest galax...