Milky Way, definition and study. A-Z index of Cognitio.

The Milky Way is the galaxy to which the solar system belongs; is the galaxy by the name, as the name derives from the Greek galaxias, milky, used in Greek times to designate it.

Galaxy, definition and study. A-Z index of Cognitio.

Galaxy

According to recent studies, the galaxy appears to be, from a strictly morphological point of view, a spiral galaxy, a galaxy composed of a nucleus crossed by a bar-shaped structure from which the spiral arms they follow a logarithmic pattern. In the course of history many myths and legends have arisen to explain the origin of the Milky Way: from Milk that nurses Heracles in Greek mythology to the ethereal Gange of India; imagined by Democrats and Arab astronomers as a wander of distant stars, was recognized as such by Galileo Galilei and later by scholars and philosophers such as Immanuel Kant, William Herschel and Lord Rosse.

Mythology, definition and study. A-Z index of Cognitio.

Mythology

Looking at the Milky Way from the Earth, which lies in one of its spiral arms, it appears in the night sky as a light band of white light transversely across the entire celestial vault, where a larger number of stars thickens than in other areas of the sky and looks slightly different in appearance depending on the hemisphere in which you are. In Latin form Via Lactea, the term was then used by the Romans, who recalled the Greek myth. The Babylonians believed that the Milky Way was obtained from the metamorphosis of the tail of Dragon-Tiam, after that it was captured by the god Marduk.

Marduk God, after the creation, has the Anunnaki divided Original article of Alessandro Brizzi.

Marduk God

The ancient Egyptians considered the Milky Way as a heavenly counterpart of the Nile: a clear river crossing the night sky just as the Nile crossed their lands.

The Milky Way Star Disc has a diameter of about 100,000 light years and a thickness in the arm region of about 1,000 light years. Estimates on the number of stars that make up her are varied and sometimes controversial: according to some sources would be about 200 billion. If there was a scale model with a diameter of 130 km representing our Galaxy, the solar system would occupy just 2 millimeters. Defining the exact age of the Milky Way presents considerable difficulties; the age of the oldest star known in the Galaxy, HD 140283, with an estimated 13.6 billion years, a dating not very different from that of the Universe itself. Astronomers believe that the Milky Way moves to about 600 km / s from the reference given by the surrounding galaxies; If that were correct, the Earth would make a Space Shift of 51.84 million km a day, or more than 18.9 billion kilometers per year, about 4.5 times the minimum distance from Pluto.

Our Galaxy would move to a point of visible Space in the constellation of Idra, and could eventually become a member of the Virgin’s Compassion.

Milky Way, definition and study. A-Z index of Cognitio.

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Milky Way, definition and study. A-Z index of Cognitio.

Milky Way