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Download as PDF; Printable version; ... The Milky Way [c] ... The explanation for this apparent discrepancy is unclear. [221]
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The Origin of the Milky Way by Jacopo Tintoretto.. The myth of the milk of Hera (Ancient Greek: Ἥρας γάλα, romanized: Hḗras gala) is an ancient Greek myth and explanation of the origin of the Milky Way within the context of creation myths.
The Greek name for the Milky Way (Γαλαξίας Galaxias) is derived from the Greek word for milk (γάλα, gala). One legend explains how the Milky Way was created by Heracles (Roman Hercules) when he was a baby. [16] His father, Zeus, was fond of his son, who was born of the mortal woman Alcmene.
The Local Sheet in astronomy is a nearby extragalactic region of space where the Milky Way, the members of the Local Group and other galaxies share a similar peculiar velocity. [2] This region lies within a radius of about 7 Mpc (23 Mly), [3] 0.46 Mpc (1.5 Mly) thick, [1] and galaxies beyond that distance show markedly different velocities. [3]
The thick disk is one of the structural components of about 2/3 of all disk galaxies, including the Milky Way. It was discovered first in external edge-on galaxies. [1] Soon after, it was proposed as a distinct galactic structure in the Milky Way, different from the thin disk and the halo in the 1983 article by Gilmore & Reid. [2]
center – the study of the central region of the Milky Way; disk – the study of the Milky Way disk (the plane upon which most galactic objects are aligned) evolution – the evolution of the Milky Way; formation – the formation of the Milky Way; fundamental parameters – the fundamental parameters of the Milky Way (mass, size etc.)
The Gould Belt is a local ring of stars in the Milky Way, tilted away from the galactic plane by about 16–20 degrees, first reported by John Herschel and Benjamin Gould in the 19th century. [1] It contains many O- and B-type stars, and many of the nearest star-forming regions of the local Orion Arm, to which the Sun belongs.