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The Milky Way is the galaxy that ... the Babylonian national god, ... Maps of artificial night sky brightness show that more than one-third of Earth's population ...
Northern Hemisphere. Coordinates: 90°0′0″N 0°0′0″E. Northern Hemisphere shaded blue. The hemispheres appear unequal here because Antarctica is not shown. Northern Hemisphere from above the North Pole. The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as ...
Galactic quadrant. Longitudinal lines of the galactic coordinate system. A galactic quadrant, or quadrant of the Galaxy, is one of four circular sectors in the division of the Milky Way Galaxy. Numbered quadrants and sectors of constellations. Quadrants as starcharts, with most prominent stars marked.
Great Attractor. The Great Attractor is a region of gravitational attraction in intergalactic space and the apparent central gravitational point of the Laniakea Supercluster of galaxies that includes the Milky Way galaxy, as well as about 100,000 other galaxies. The observed attraction suggests a localized concentration of mass having the order ...
Many of the constellations were given names based on their shapes, just as traditional western astronomy does, such as the Pleiades, Orion and the Milky Way, with others, such as Emu in the Sky, describes the dark patches rather than the points lit by the stars. Contemporary Indigenous Australian art often references astronomical subjects and their related lore, such as the Seven Sisters .
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 dense hot gas halo of the Milky Way that strip cold ...