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The Milky Way[ c ] is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.
From largest to smallest structure: Universe Observable universe Pisces–Cetus Supercluster Complex Laniakea Supercluster Virgo Supercluster Local Sheet Local Group Milky Way subgroup Milky Way Orion–Cygnus Arm Gould Belt Local Bubble Local Interstellar Cloud – immediate galactic neighborhood of the Solar System. Alpha Centauri – star system nearest to the Solar System, at about 4.4 ...
Diagram of the Milky Way, with galactic features and the relative position of the Solar System labeled. The Solar System is located in the Milky Way, a barred spiral galaxy with a diameter of about 100,000 light-years containing more than 100 billion stars. [ 271 ]
The motion of nearly 1.3 billion stars has been recorded as well as the location and brightness of 1.7 billion. ... visualizations of what the Milky Way looks like. The image you see above ( full ...
The Large Magellanic Cloud (LMC) is a dwarf galaxy and satellite galaxy of the Milky Way. [ 7 ] At a distance of around 50 kiloparsecs (163,000 light-years), [ 2 ][ 8 ][ 9 ][ 10 ] the LMC is the second- or third-closest galaxy to the Milky Way, after the Sagittarius Dwarf Spheroidal (c.16 kiloparsecs (52,000 light-years) away) and the possible dwarf irregular galaxy called the Canis Major ...
Barnard's Star is the star with the highest proper motion. [ 1 ] In astronomy, stellar kinematics is the observational study or measurement of the kinematics or motions of stars through space. Stellar kinematics encompasses the measurement of stellar velocities in the Milky Way and its satellites as well as the internal kinematics of more ...
Satellite galaxies that orbit from 1,000 ly (310 pc) of the edge of the disc of the Milky Way Galaxy to the edge of the dark matter halo of the Milky Way at 980,000 ly (300 kpc) from the center of the galaxy, [ a ] are generally depleted in hydrogen gas compared to those that orbit more distantly. This is because of their interactions with the ...
Mercury is the first planet from the Sun and the smallest in the Solar System. In English, it is named after the ancient Roman god Mercurius (Mercury), god of commerce and communication, and the messenger of the gods. Mercury is classified as a terrestrial planet, with roughly the same surface gravity as Mars.