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Server admins can also set up restrictions concerning which usernames or IP addresses – using a whitelist – are allowed to enter the server. Multiplayer servers offer players a wide range of activities, such as role-playing , enjoying player-created mini-games, collaborating with others, and waging faction warfare.
Radio-faint galaxies like M 31 and M33, the Milky Way's neighbors, have weaker fields (about 5 μG), while gas-rich galaxies with high star-formation rates, like M 51, M 83 and NGC 6946, have 15 μG on average. In prominent spiral arms, the field strength can be up to 25 μG, in regions where cold gas and dust are also concentrated.
Size (left) and distance (right) of a few well-known galaxies put to scale. There are an estimated 100 billion galaxies in all of the observable universe. [1] On the order of 100,000 galaxies make up the Local Supercluster, and about 51 galaxies are in the Local Group (see list of nearest galaxies for a complete list).
The term "The Local Group" was introduced by Edwin Hubble in Chapter VI of his 1936 book The Realm of the Nebulae. [11] There, he described it as "a typical small group of nebulae which is isolated in the general field" and delineated, by decreasing luminosity, its members to be M31, Milky Way, M33, Large Magellanic Cloud, Small Magellanic Cloud, M32, NGC 205, NGC 6822, NGC 185, IC 1613 and ...
The outer arms appear blue due to the continuing formation of young stars and include a possible luminous blue variable with an absolute magnitude of −10. [ 5 ] NGC 4414 is also an isolated galaxy without signs of past interactions with other galaxies [ 6 ] and despite not being a starburst galaxy shows a high density and richness of gas ...
Spiral galaxies are quite thin, dense, and rotate relatively fast, while the stars in elliptical galaxies have randomly oriented orbits. The majority of giant galaxies contain a supermassive black hole in their centers, ranging in mass from millions to billions of times the mass of the Sun. The black hole mass is tied to the host galaxy bulge ...
REBELS-25 is a massive, star-forming rotating disc galaxy [1] [2] with a redshift of 7.31. [3] It was discovered using the Atacama Large Millimeter/submillimeter Array (ALMA), [4] [5] notice of its discovery was published in the Monthly Notices of the Royal Astronomical Society. REBELS-25 existed just 700 million years after the Big Bang.
The following is a list of particularly notable actual or hypothetical stars that have their own articles in Wikipedia, but are not included in the lists above. BPM 37093 — a diamond star Cygnus X-1 — X-ray source