Milky Way

  • What does milky way mean?
  • The Milky Way is the sky island within which the Solar System is located. It is a kind of barrel spiral type sky that is part of the Local Cluster. The billions of heavenly skies in the observable Universe are just one. On Friday, October 23, 2015, the German astronomers Ruhr-Universität Bochum published a map of the Milky Way galaxy with a resolution of “855.000×54.000” of 46 million pixels.


  • History of the Milky Way
  • Etymology
  • The origin of the galaxy is the word galaxias (γαλαξίας), which means “dairy, milk“, which is used to indicate our galaxy, or kyklos galaktikos (κύκλος γαλακτίκος), meaning “dairy circle“. This term, and therefore the Milky Way, used for the Milky Way in Western culture, originates from a myth in ancient Greek mythology: One night Zeus puts her son Herakles, made by a mortal woman, on Hera’s chest, immersed in sleep. Baby Herakles will drink milk flowing from Hera’s tits and thus become immortal. But when Hera wakes up at night and notices that she is breastfeeding a baby she throws it out, and the milk that comes out of her empty breast flushes into the night sky. According to the story, the so-called “Milky Way“, which we saw in the sky with a dim light, formed like this.






  • Discovery
  • In ancient times, the Greek philosopher Democritus (450-370 BC) noted that the illuminated area called the Milky Way, which appears at night in the sky, may consist of distant stars.
  • According to Aristotle‘s thought (384-322 BC), the Milky Way was caused by the exacerbation of a large number of interconnected stars, and these flames were located at the top of the Earth’s atmosphere.
  • The Arab astronomer Ibn al-Haytham (965-1037) attempted to observe and measure the open angle of the Milky Way; Milk Road did not have an open angle. He opposed Aristotle’s opinion by saying, “This is from the Earth, not from the atmosfere.”
  • The Iranian astronomer Biruni (973-1048) came up with the idea that the Milky Way Sky Island might be the myriad of nebulous stars.
  • Ibn Bacce argued that the Milky Way is made up of many stars, and that it may be due to the break in the atmosphere of the Earth that it is constantly visible.
  • Ibn Qayyim al-Jawziyya (1292-1350) argued that the Milky Way Sky consists of a large number of small stars gathered at the fixed star antelope, and that these stars are larger than the planets.
  • Galileo Galilei came from the first proof that the Milky Way Sky Island consists of many stars. In 1610, Galilei, studying the Milky Way Sky Island with a telescope, noticed that it was the gathering of many stars.
  • In 1750, British astronomer and mathematician Thomas Wright wrote that in the novelThe original theory of the universe or the new hypothesis,” the sky is a mass composed of a large number of rotating stars connected in a similar fashion to the Solar System, but on a larger scale, He revealed his opinion. As a result, according to this idea, this disc, which the stars have formed and which we are in, could be seen as the Milky Way in the sky in terms of looking at our sky.
  • In his scientific review of 1755, Immanuel Kant elaborated Thomas Wright’s thoughts and works a little bit further, saying that heavenly man was a star cluster (rightly), similar to our Solar System, held together by gravitation and rotating.
  • Kant also assumed that several of the nebulae that could be observed at that time were also separate sky islands. The first attempt on the shape of the Milky Way Sky Island and the position of the Sun on the sky island came from William Herschel, who, in 1785, took care of the stars in different parts of the sky. Herschel prepared a diagram showing the shape of the sky island by placing the Solar System near the center.
  • Jacobus Kapteyn, in a delicate approach, designed a small elliptical sky island in the 1920s drawing near the center of the Sun.
  • Harlow Shapley, who applied a different method, designed the global cluster catalog in the form of a flat disk about 70 kiloparsec radius, which is totally different from the ones before him, in which the sky is far from the center of the Sun.
  • Both erroneous studies did not account for the absorption of light in the galactic plane by means of the interstellar dust. The consolidation began only when Robert Julius Trumpler measured this effect while working on open star clusters in 1930, and the theories of today’s sky island appearances were reached.


  • Structure of Milky Way Galaxy
  • The widespread view of the shape of the Milky Way is that it is a barred spiral galaxy. The two main arms and auxiliary arms, extending in logarithmic spirals from both ends of the central rod-shaped star condensation, form the shape of the galaxy. This opinion first came to light in the 1990s and was reinforced in 2005 with information from the Spitzer Space Telescope.
Milky Way
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Science and Mathematics

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