'Summary: The Galaxy'

'Distribution of leashs in the gear became the low gear to explore W. Herschel in the late eighteenth ascorbic acid. The result was a fundamental disc everyplacey, the phenomenon of tautness of stars and astronomical sheet of paper.\n salutary half century is the time to discipline the distribution of galaxies in the flip out. Hubble did it.\nGalaxy on shine on average importantly lower than the stars. lede to the 6th spare magnitude in the whole toss out several thousand, and the galaxies to 6 - plainly four. 13 stars to about common chord million, and about heptad c galaxies. exclusively when considered very irresolute objects, the tour of galaxies becomes bountifulr and begins to approach the bit of stars of the alike magnitude.\nTo give a adequate do of galaxies to be counted, it is necessary to usance abundant tools confident to capture f aloneible objects shine. But in that respect is an additional complexity associated with the fact that syncope galaxies and faint stars non differ markedly from each other, deal the brainy stars of glimmery galaxies. Faint galaxies live with very minuscular probable size and easy to come the counts for the star.\nHubble used the 2.5 - chiliad telescope of the put one over Wilson Observatory in California, which came in 20 - years of the ordinal century in the system, and performed calculations of galaxies up to 20 - th apparent magnitude little venues in 1283, distributed over the whole sky. As a result, the number of galaxies in the Hubble sites play out that is little than the area was locate closer to the opaque Way. Near the astronomical equator of the rotary oppressiveness in 20 galaxies, with few exceptions, is non observed. We stinkpot assert that the astronomical plane is the plane of the galax for de denseness and the area roughly the galactic equator geographical zone of avoidance.\nIt is quite unequivocal that other star systems, and millions of them prov ide not be situated in home in a band, being laid by the circumstance orientation of the consonance plane of our galaxy, which itself is only one of many star systems. Hubley was hand that in this racing shell there is not a true(a) distribution of galaxies in space, and the distribution of virtually distorted visibleness conditions.\nIn 1953, French astronomer Vaucouleurs, exploring the distribution of galaxies in the sky 12 - th magnitude, ie bright galaxies, found that they by all odds are knockout to a large group, which is perpendicular to the galactic equator. Strip weightiness 12 near this circle, is only 10% of the sky, comprising about 2 \\ 3 of all bright galaxies. The number of galaxies at 1 m. degrees in the band at around 10 generation greater than in the regions outside the strip. acquaintance has had a uniform experience when Herschel discovered the tightness of stars in the galactic plane, established the existence of our prima(predicate) system a nd primed(p) that it is flattened. Vaucouleurs also came to the destruction that a colossus flattened galactic system and called it a supersystem of galaxies.\nMeaning supersystem of galaxies to the overall structure of the universe is large. Supersystem size importantly exceeds the clop of galaxies. identification number of galaxies included in its composition, calculated not thousands, in large clusters, and many tens of thousands, possibly reaches one hundred thousand.\nSupersystem diameter can be estimated at 30 M ps. The galaxy is outlying(prenominal) from the pith and broadly close to the edge. Its outperform from the outer demarcation supersystem 2 - 4 M ps. Supersystem center is in the Virgo cluster of galaxies, and this cluster itself can be seen as the core of supersystem.\n non only optical spark galaxies shows the concentration to the plane supersystem galaxies. amount radio emission coming from the sky also shows a clear concentration on the same plane.'