Superclusters.
Your question can not be answered exactly as it is asked. Many of the things in the universe come in various sizes. There are Galaxies and there are Super Galaxies. Super Galaxies can be bigger than clusters of galaxies. Planets and Moons come in all kinds of sizes. Some moons are the size of some minor and/or regular planets... such as Ganymede, and Titan for example. Both are larger than Mercury, and the minor planet Pluto. Pulsars are the remnants of a dying star, stars, meteors, and every thing you have asked about come in various sizes as well. I would recommend that you find and watch "The Universe" which I believe is on the Discovery Channel. There is an episode that deals with the largest things in the Universe. According to that source... the largest thing in the Universe is the "Cosmic Web". This show will deal with pretty much everything you have on your list. It is a very interesting show, and it repeats regularly.
No, The Milky Way is the galaxy in which Earth's sun is to be found and it is only the second largest galaxy in the local group - the neighboring Andromeda galaxy is larger. The largest galaxies that we know of are giant elliptical galaxies in the centers of clusters of galaxies. These galaxies are about 10 times more luminous than the Milky Way and Andromeda (which are spiral galaxies) and about 100 times more massive, with diameters of more than 6 million light years (compared to about 100 thousand light years for the Milky Way). The largest objects in the universe that we can recognize are galactic super clusters, which are large associations of galaxies that can extend over distances of more than 100 million light-years.
Stars, quasars, clusters, nebulae, galaxies, superclusters, the CMBR (Cosmic Microwave Background Radiation).
That sounds like a description of a galaxy.
A Galaxy Group: Is the smallest grouping and usually contains less than 50 galaxies.A Galaxy Cluster: Is larger than a group and usually contains between 50 to 1,000 galaxies.A Supercluster: Is the largest collection of galaxies and will contain many groups and clusters.I think you mean group of galaxies. A group of galaxies is groups and clusters are the largest known gravitationally bound objects to have arisen thus far in the process of cosmic structure formation. They form the densest part of the large scale structure of the universe.
A Galaxy Group: Is the smallest grouping and usually contains less than 50 galaxies.A Galaxy Cluster: Is larger than a group and usually contains between 50 to 1,000 galaxies.A Supercluster: Is the largest collection of galaxies and will contain many groups and clusters.I think you mean group of galaxies. A group of galaxies is groups and clusters are the largest known gravitationally bound objects to have arisen thus far in the process of cosmic structure formation. They form the densest part of the large scale structure of the universe.
Study stars.Not only! Astronomy deals with the study of celestial objects (such as stars, planets, comets, nebulae, star clusters and galaxies). It is concerned with the physics, chemistry and dynamics of celestial objects, as well as the formation and evolution of the universe.
Galaxy Super clusters Galaxy Clusters Local Galaxy groups Spiral, elliptical and dwarf Galaxies (quasars and blazers) Voorwerps Spiral arms Nebulae (of numerous sorts) Star clusters (open and globular) Stars (quark stars, neutron stars, whore dwarfs, red giant stars, main sequence stars (of all sizes)) Novas, Supernovas and planetary nebulae Black holes Planets (and dwarf planets) Moons Planetary rings asteroids, Oort cloud and Kuiper belt objects and comets meteoroids dust
Stephen James O'Meara has written: 'Stephen James O'Meara's observing the night sky with binoculars' -- subject(s): Observers' manuals, Binoculars, Stars, Astronomy, Constellations 'The Caldwell objects' -- subject(s): Astronomy, Charts, diagrams, Charts, diagrams, etc, Clusters, Galaxies, Nebulae, Observers' manuals, Stars 'The Messier objects field guide' -- subject(s): Charts, diagrams, Astronomy, Observers' manuals, Stars, Clusters, Galaxies, Nebulae 'Deep-Sky Companions' 'Hidden treasures' -- subject(s): Astronomy, Charts, diagrams, Charts, diagrams, etc, Clusters, Galaxies, Nebulae, Observers' manuals, Stars
A Galaxy Group: Is the smallest grouping and usually contains less than 50 galaxies.A Galaxy Cluster: Is larger than a group and usually contains between 50 to 1,000 galaxies.A Supercluster: Is the largest collection of galaxies and will contain many groups and clusters.I think you mean group of galaxies. A group of galaxies is groups and clusters are the largest known gravitationally bound objects to have arisen thus far in the process of cosmic structure formation. They form the densest part of the large scale structure of the universe.
Astronomy.Astronomy is a natural science that deals with the study of celestial objects (such as stars, planets, comets, nebulae, star clusters and galaxies) and phenomena that originate outside the atmosphere of Earth (such as the cosmic background radiation).
Most objects in outer space are moving under the gravitational attraction of other galaxies or galactic clusters. The attractive force speeds them up rather than slows them down.