Nov 08, · The Milky Way Galaxy The major arms consist of the highest densities of both young and old stars; the minor arms are primarily filled with gas and pockets of star-forming activity. The artist's concept also includes a new spiral arm, called the "Far-3 kiloparsec arm," discovered via a radio-telescope survey of gas in the Milky Way. Nov 14, · The Milky Way is a barred spiral galaxy, about , light-years across. If you could look down on it from the top, you would see a central bulge . And this Milky Way is considered to be part of a group of about 50 galaxies called the Galaxy Local Group. Andromeda Galaxy is also a part of this group. The Milky Way galaxy diameter is estimated to be around , to ly. The number of locations in the Milky Way galaxy is estimated to be around billion. The Milky Way has several smaller galaxies gravitationally bound to it, as part of the Milky Way subgroup, which is part of the local galaxy cluster, the Local Group.. There are 59 small galaxies confirmed to be within kiloparsecs ( million light-years) of the Milky Way, but not all of them are necessarily in orbit, and some may themselves be in orbit of other satellite galaxies. Light at the galaxy’s center takes 25, light-years to travel from Earth. (A light-year is the distance light travels in one year.) So that means if you could see the core of the Milky Way, you’d be observing light that possibly left Earth before humans first settled in North America. The Milky Way is the second-largest galaxy in the Local Group (after the Andromeda Galaxy), with its stellar disk approximately ,–, light-years (52–61 kpc) in diameter and, on average, approximately 1, ly ( kpc) thick. The Milky Way is approximately billion times the mass of the Sun. To compare the relative physical scale of the Milky Way, if the Solar System out to. Oct 11, · Astronomers have discovered a strange surplus of gas in the Milky Way galaxy. Using 10 years of data from NASA's Hubble Space Telescope, the team of . Feb 08, · Our galaxy, the Milky Way, is destined to collide with its largest neighbor, a sparkling collection of stars called the Andromeda galaxy. This cataclysm has been foretold by well-known physics. Oct 04, · Another clue comes when astronomers map young, bright stars and clouds of ionized hydrogen in the Milky Way's disk. These clouds, called HII regions, are ionized by young, hot stars and are basically free protons and cautheocratconsnimi.funbereterhirombbalyfistcomerpi.co are both important marker of spiral arms in other spiral galaxies we see, so mapping them in our own galaxy can give a clue about the spiral nature of the Milky Way.
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